Each practice day Youth Chris Jones Jersey , the Kansas City Chiefs will release an official injury report leading up to the next game. The Chiefs host the Arizona Cardinals at Arrowhead Stadium this Sunday.Here is the Chiefs' final official injury report of the week, with official injury designations:CardinalsSome notesIn a rather Belichickian move, the Chiefs have listed six players—left guard Cam Erving, linebacker Anthony Hitchens, wide receiver Sammy Watkins, linebacker Justin Houston, safety Daniel Sorensen and linebacker Frank Zombo—as questionable. Based upon comments this week and the sake of getting them back into football shape ahead of Mexico City vs. the Rams, I expect Houston and Sorensen to be in the lineup. The other four players are up for interpretation. Safety Eric Berry (doubtful) and center Mitch Morse (out) won't play.Cardinals wide receiver Chad Williams and defensive tackle Robert Nkemdiche have been ruled out.Similar to the Chiefs, the Cardinals have a number of players officially listed as questionable—seven to be exact. Cardinals safety Budda Baker's listing of limited Friday continues to lead me to believe his status for Sunday could be in jeopardy. Baker wasn't listed on the injury report to begin the week and is officially listed as questionable.Film Review: Safeties Jordan Lucas and Armani Watts On Sunday, the Kansas City Chiefs defense showed up in a huge way, actively outplaying the Jacksonville Jaguars defense, and holding the Jaguars to 14 points — seven of which were in garbage time — and forcing five turnovers.The Chiefs offense was better than they're being given credit for.In the first half, the Chiefs did pretty much anything they wanted on just about every drive — but that simply can't be the story after the defensive performance.As much as I'd love to bring everyone down into The Laboratory to watch snap after snap of Dee Ford dominating — while I munch on popcorn and drink some tea, as I do on the AP Laboratory Podcast that drops Wednesday mornings — even that can't be the lead story for this week.The Chiefs lost safety Eric Murray on the first drive of the game — a game in which the Jaguars threw the football over 60 times! Murray was replaced by fourth-round rookie Armani Watts for most of the first half. But then Watts suffered an injury and 18th string safety Jordan Lucas had to step up and play huge snaps down the stretch. These young safeties were not only asked to play major roles, but played a significant part in this defensive performance — and are giving Chiefs fans a preview of what could be around the corner for them.So let's fire up all the screens in The AP Lab, and start digging through the film to see how these guys were able to help the Chiefs achieve an AFC Clash Of The Titans win.Safety Armani WattsShowing improvementEditor's note: We should remind you that on Tuesday, the Chiefs placed Watts — along with right guard Laurent Duvernay-Tardif — on injured reserve.Safety Dan Sorensen was already on injured reserve.All three could conceivably be ready to play before season's end, but under NFL rules, only two can return to the roster this year.So it's a fairly safe bet that unless Duvernay-Tardif's injury keeps him out much longer than expected, Watts is done for the year.In college, Watts really struggled in man coverage — whether it was on slot receivers or tight ends. His short area quickness and change of direction just aren't exceptional, making it hard to stick with athletes in space. That carried over to training camp. In camp White Cameron Erving Jersey , Watts also had a hard time handling press coverage, and was often beaten quickly off the snap. Austin Seferian-Jenkins isn't the most athletic tight end in the NFL right now — or maybe even offensive tackle on his own team — but here, Watts does a great job fighting through the physicality to hold the press. Watts keeps Seferian-Jenkins from getting into his route — or picking off another defender — and shows good feet in the process.This was goodIn college, Watts was an aggressive player that had good instincts, and always looked to make plays on the football. This is another rep against Seferian-Jenkins — this time on a slant over the middle with no help in man coverage. Watts does a good job staying balanced during the opponent's outside fake, and trails behind him without getting grabby. When you are trailing by this much, it's hard to undercut a slant route without hooking the receiver's waist and extending across their body, but here, Watts pulls it off perfectly. Why to be skepticalWatts spent the vast majority of his snaps against Jacksonville in man coverage or underneath zones, and while his man coverage was solid overall, he wasn't challenged or pressed in zone at all. His ability to have proper zone spacing — as well as his ability to read and react to multiple routes — is still an unknown. But the bigger question right now is still his run fits.The depth Watts gets here is debatable — and that could be a coaching issue — but the worry comes from how hesitant and slow he is to come to the run. Watts comes downhill slowly, and then commits the cardinal sin of slowing his feet, getting stuck in mud, and trying to react laterally to what the runner is doing.Watts has to learn to attack and reduce the running lane to the sideline, and react more quickly to the run — especially when he plays up in the box. Safety Jordan LucasShowing improvementBefore being traded to Kansas City just before the season started, Lucas hadn't seen much playing time in the Miami Dolphins defense, and while this is just one game, Lucas looked really good.Lucas was exceptional in nearly every aspect of the game, and it's worth noting the Chiefs played him as the center field safety more than anywhere else. He also saw a few reps in underneath coverage and man-to-man. Jacksonville tight end Niles Paul is a solid athlete, and here he has a one-on-one matchup with Lucas on a corner route, with the only help coming on a slant or drag. Paul tries to shake Lucas off the line, but Lucas stays patient.When Paul tries to press vertically into his body White Sammy Watkins Jersey , Lucas responds with physicality to stick right on his hip as Paul breaks to the corner. Later in the game — also in man coverage — Lucas showed fantastic feel working through traffic on a crossing route, and working from depth to undercut another pass attempt to Paul.This interception looks like a simple overthrow by Blake Bortles, but Lucas' ability to read the field and stay in a position to take away both seams was impressive. Lucas does a good job balancing his positioning with his hips so he can break on either route immediately — all while climbing to depth.As soon as the quarterback steps to deliver the ball, Lucas is tracking it so he can adjust while coming downhill. The return is just amazing from every angle.Lucas' ability to read the field as a center field safety like this — on a difficult route combination — is very impressive for a player with so little playing time.This was goodLucas really flies around the field — but does so responsibly, and with purpose. He breaks quickly with good angles overall — really squeezing into help or the sideline — and seems to have a fantastic grasp of each situation.Here he adjusts Terrance Smith's alignment to play with outside leverage based on the receiver split and the coverage, and then Lucas stays home to help Smith as the post is shown. He breaks out with the receiver just in case he can undercut the ball, but as soon as the ball is thrown to the underneath receiver, he breaks immediately with speed and a great angle. This is big-time help in a clutch fourth-down stop. Why to be skepticalNone of this is to say Lucas was perfect against the Jaguars, but all in all, there just isn't much to be worried over. There are small zone spacing issues — as well as knowing when a guy can be passed off early and when he has to stick on them the entire way — but that will come with experience.This is a bit of a nitpick, because Lucas reads this play perfectly, stays over the top and works the routes across the field. The one problem is that his first step on his break is overly aggressive, which ends up allowing the reception just in front of him.You'd like to see Lucas attack from depth-forward, or to break laterally and then come downhill at the ball — like his interception from later in the game — so he's the one cutting off the wide receiver, rather than trying to run behind the receiver on the route.Are these young guns ready to push for even more snaps?Not only was this a great game for the Chiefs, it also gave some young talent the opportunity to showcase their abilities. Watts had been seeing his snap counts increase due to injuries — and was picking up the defense — so Watts being placed on injured reserve is bad news. But the good news is what we saw from Jordan Lucas.Even though Lucas hadn't been given many opportunities, he made one heck of a case to be given more — thanks to his ability to close on the ball carriers quickly, read the field as a deep safety, and execute well against good athletes in man coverage.And with Eric Murray's sprained ankle, it seems likely that Lucas could get those opportunities, and prove that he can contribute in the NFL.