PHILADELPHIA -- Jim Schwartz and Matthew Stafford both joined the Detroit Lions in 2009 and were paired together as head coach and quarterback for the next five seasons.

Fair to say, there's some familiarity there.

The reunion is scheduled for 1 p.m. Sunday at Ford Field, and the head-to-head matchup promises to be an interesting one. Stafford has been a bright spot for the 1-3 Lions, ranking fourth in the NFL in passing yards (1,198).

Schwartz's defense, meanwhile, has yielded just 20 points total through three games and has generated six takeaways.

Both are coming in hot. The chess game between these old colleagues will be a factor in how this one plays out.

Here are six players to watch, courtesy of ESPN Lions reporter Michael Rothstein:

OFFENSE

QB Matthew Stafford: The clear leader of Detroit's offense, he's playing like a top 10 quarterback. For the most part, he has made smart decisions and has read defenses well, completing 66.7 percent of his passes. An interesting matchup for him will be facing two people who know him well. Eagles DC Jim Schwartz was Stafford's head coach his first five years in the league and knows his tendencies well. LB Stephen Tulloch also knows Stafford well and should be able to prep his defense.

WR Marvin Jones: He isn't leading the league in receiving anymore but at 482 receiving yards he is still averaging over 100 yards per game. He is Stafford's leading target and a game-breaker with a strong combination of size, speed, hands and a willingness to go over the middle.

WR Golden Tate: He's an interesting case. He had been dynamic his first two years in Detroit but disappeared in the offense this year. He was benched for a chunk of the second half in Sunday's loss to Chicago and had one catch for 1 yard. The talent and experience is there so it's a question of whether he'll eventually break out. He hasn't broken tackles nearly as well as he has done in years past.

ESPN Stats & Info

DEFENSE

DE Kerry Hyder: The Lions haven't generated much pass rush with Ezekiel Ansah out, with Hyder being the exception. He has five sacks this season and has had at least one in every game. He won't overwhelm you with intangibles, but he wins on effort most of the time.

CB Darius Slay: He doesn't have the interception numbers, but he is clearly Detroit's top cornerback and is able to make plays. He'll often draw the opponent's top outside receiver, and he's a strong tackler. He has quick recovery time and rarely gets beaten on a big play. He had a sack and three passes defended against Chicago.

S Glover Quin: He is Detroit's defensive leader and an incredibly smart player. He is rarely out of position and a good communicator to the rest of the secondary and the defense. He can play well against the run and the pass, and he has Detroit's only takeaway this year -- an interception against Tennessee.