His first action of note was to pick the ball up out of the net but showed his value with two second-half saves from van Persie.
Impressive display at right back. Ensured Ramsey and Gervinho barely got a kick.
Defended with aplomb and bombed powerfully forward whenever he could.
His concentration barely slipped for a second as he commanded the back four with great nous and commitment.
Filled in at center back with great commitment and skill, considering the difficulty of the assignment.
Terrific display in the midfield heartlands. Never allowed Arteta and Song to dominate, used the ball impressively and popped up in the box to emphatically restore QPR's advantage with their second goal.
After a winter of discontent and the revelation that the fans' jeers were getting to him, the skipper finally delivered a performance of note. Drove his team forward and inches from scoring a third late on.
Flamboyant, unpredictable and intermittently excellent. Showed great poise to break away from Vermaelen and fire in QPR's opener and some of his touches were out of the top drawer.
One of those days when he looks the best targetman in the Premier League. His touch and back-to-defender play was outstanding although he wasted an excellent first-half headed chance.
Energetic and electric. Provided excellent support for Zamora from the right flank.
Could do little to keep out either of QPR's emphatically dispatched goals but his goal kicks were a little wimpish.
Below-par contribution from the right-back as the unpredictability of Taarabt caused him more anxiety than most opponents have this season.
QPR had a lot of joy on their right flank as it targeted the left back as the weak link in the Arsenal back four. Subbed with nine minutes left.
A drop in his usual high standards. Did not cover himself in glory for either of QPR's goals as he failed to close down the space quickly enough.
Lost out in a few one v ones against Zamora, although his recovery pace hauled him out of trouble on a few occasions. Made some important second-half interceptions.
The best Arsenal midfielder on show but he seemed more intent on creating rather than nullifying.
A square peg in a round hole on the left flank. Struggled to get involved and, when he did, the recalled Welshman's unfamiliarity with the role meant he tended to opt for the safe option. Subbed with 22 minutes left.
Has rolled back the years during a marvelous March but, after being favored ahead of Ramsey for the playmaker role, he was a fairly anonymous figure.
His smooth distribution ensured Arsenal were more fluid after the break but struggled to conjure too many killer passes.
Kept his composure to slam home the rebound after seeing his initial effort cannon off the post but was otherwise restricted to the odd menacing counter-attack.
R. van Persie
Came to life after a quiet first half but wasted a great one-on-one at 1-1, when his powerful shot was struck too close to Kenny.