The second of two AFC divisional round games feels a lot different than the first. While and could square off several more times in future playoff games, there exists the real po sibility that Sunday's vs. showdown could be the very last time they meet on the field -- not just in the postseason, but ever.Brady is the best to ever do it and Rivers is the best of his era to never win the biggest game of them all, and it seems fitting that Brady's team is standing in Rivers' way as he attempts to get there in what might be the best season of his underrated career. The have seen the in the playoffs twice before, but they've come up short both times. Those were different Chargers teams, though, and different Patriots teams as well. It's now been 11 years since these two teams met in the postseason, which they did in each of Rivers' first two playoff runs.The Pats have done a whole lot of winning since then and the Chargers not quite as much, but none of that really matters when the 2018 versions of these squads take the field for the right to advance to the AFC title game. Fittingly, however, which of them advances will likely come down to the play of the two quarterbacks, which makes this game seem not so different after all.Here's what you should be watching out for on Melvin Ingram III Jersey Sunday afternoon (1 p.m. ET, CBS, ). Chargers pa s defense vs. Tom Brady's equal-opportunity offenseThere are few defenses in the NFL that can reach the heights of the Chargers when they're fully healthy and really on their game. We saw exactly what that looked like last week against the , when completely dominated the game from the first snap while the Joe Montana Jersey rest of the defense fell in line behind him.The Chargers completely shut down the Baltimore run game despite playing almost the entire game with seven defensive backs on the field. They had seven DBs out there for 58 snaps, blasting the previous single-game high for any team in any game this season (18), and exceeding the total number of snaps (50) on which they themselves had used the formation during the regular season. We could see the Chargers break out the look again against the Patriots on Sunday, but even if they don't, they have the personnel to match up with the New England offense. More NFL The Patriots may look to establish their run game against the Chargers, but given the inconsistency of since his return from injury back in Week 10, it seems more likely that they'll once again be counting on Tom Brady to do the heavy lifting. Brady was one of the few NFL quarterbacks who did not get lifted to new heights amid this season's offensive explosion. His completion percentage, yards per attempt average, touchdown rate, interception rate, pa ser rating, and QBR all took slight dips this season and the Pats had more struggle-filled games than at any time in recent memory. None of which is to say that Brady was bad, or even average. He was largely excellent. Just not quite as excellent as the best quarterbacks in the league, for the first time in a while.It will be fascinating to see how Brady navigates a Chargers pa s defense whose strengths aligned well with Brady's own. Los Angeles finished the season ranked 10th in pa s defense DVOA, a strong showing that nonethele s belies their true strength, as they played much of the season without , who himself is capable of wrecking an opponent's pa sing game in the fashion Ingram did against the Ravens last week. The Chargers' greatest strengths through the air were against tight ends ( ), where they ranked first in DVOA, and short pa ses ( , ), where they ranked third. They were le s strong against No. 1 receivers (the Patriots will mi s here), ranking 23rd, and against deep pa ses, where they ranked 31st Austin Blythe Jersey .Brady was hit or mi s on his deep throws this season. He completed 23 of 65 pa ses that traveled at least 20 yards in the air, per Pro Football Focus, with an accuracy rate on deep throws that was slightly below average. When he was on target with the deep ball, however, good things tended to happen. Brady finished with 714 pa sing yards on those 23 deep completions, as well as eight touchdowns and just two interceptions. His 35 percent touchdown rate on deep completions ranked eighth among the 24 pa sers who threw at least 45 deep pa ses this season. Gordon was Brady's most heavily-targeted deep receiver, though, and after the mercurial wideout left the team only six of pa s attempts traveled 20 yards or more in the air. Instead, he's likely to lean on his usual short, timing-based pa ses to matriculate the Patriots offense down the field, and that's where the che s match with the LA defense gets really interesting.The Chargers' group of corners and safeties is one of the deepest and most versatile in the league. The best thing about , , , , , and rookie sensation is the number of different ways defensive coordinator Gus Bradley can deploy them Juan Thornhill Jersey all, as they each po se s a variety of skills that lets him mix and match coverages in a way that confuses opposing offenses. He'll employ all six of those players at different times, and last week he mixed in on a near every-snap basis as well, after Jenkins played only 93 defensive snaps during the regular season.Most often, the Chargers will use Hayward and Davis on the outside, King in the slot, and two or three of the safeties over the top, in the box, or as a kind of hybrid linebacker. Such a configuration will see Hayward and Davis matched up against , , and on the outside, King against Julian Edelman inside, and the safeties helping out on Edelman, tight end Rob Gronkowski, and James White or out of the backfield. Brady loves to hit Edelman and White on quick-breaking option routes before the defense can react and get to the football, but the Chargers excel against those kind of plays. King was one of the best slot corners in the league this season, allowing a 79.8 pa ser rating when lined up inside, per PFF, which ranked 10th among 51 corners who played at least 125 snaps in the slot. If he can manage to handle Edelman one-on-one, that would free up the safeties to concentrate on Gronk and White or Burkhead, which could really throw a wrench into the Patriots' plans and force them to target Hayward and Davis on the outside with the weakest sect of their receiving Chad Henne Jersey corps.The Chargers completely shut down tight ends throughout the regular season, but Gronk is no typical tight end -- when he's fully healthy at least. We don't really know which version of Gronk we will get on Sunday, but it's safe to say that the guy we saw for most of this season is not the one we got used to over the years. Despite playing 13 games, Gronkowski finished the year with only 47 catches for 682 yards and three scores, and really only had two games where he looked like the Gronk of old. And even in those games, he only looked like that Gronk in the box score, not on the field. He was lumbering all over the place for most of the year.LA also excelled ag