Olympiakos was able to get the better of Arsenal with a 2-1 victory in the final match of the First Phase of the UEFA Champions League.
Arsenal got on the board first with a goal from Tomas Rosicky. Gervinho made a great move to the right to get free, and then he found the forward in the middle of the box.
Rosicky was then able to put the ball in the back of the net with no one there to challenge him.
Giannis Maniatis then got the equalizer off a corner kick, which was followed by a Kostas Mitroglou go-ahead goal to make it 2-1.
Arsenal tried to come back in the match, but could not get it back to even.
Olympiakos fought hard despite the fact that the club was already eliminated from advancing in the Champions League.
Despite this, the Greek squad was more aggressive throughout the match. They had a 53 percent to 47 percent advantage in possession and continued to put the ball on net with nine shots on goal.
Arsenal rested many of its key players in the match, allowing others to take the pitch that are usually only used sparingly throughout the year.
The Gunners had already secured a spot in the Round of 16 with 10 points entering the day. They already won two matches against Montpellier and earned a victory over Olympiakos in the home match earlier in the group stage.
There was a chance for the Gunners to win Group B, but they seemed content in simply advancing and staying healthy.
Schalke 04 stayed on top of the group with a draw.
Olympiakos will now return to league play, where it is on top of the table in the Super League. Arsenal will get a chance to continue its run for a Champions League title.
Kostas Mitroglou, Olympiakos: A
He came in at the 72nd minute and immediately made an impact.
Mitroglou showed his ability with a goal only one minute after entering, and it was certainly an impressive shot.
The forward put the ball in the bottom-right corner from far away, and it did not leave the keeper a chance.
Mitroglou will be an important factor in this team continuing its dominance in the Super League.
Ljubomir Fejsa, Olympiakos: C
It took Ljubomir Fejsa coming off the pitch at the 60th minute for Olympiakos to finally start playing well.
The midfielder was called for four fouls prior to that point, plus a yellow card in the 51st minute.
He was unable to push the offense and allowed Arsenal to control the middle. Fejsa would have been a prime reason for a loss if the club had not come back.
Tomas Rosicky, Arsenal: B+
His finish on the opening goal was a thing of beauty.
Although he had room to work, Rosicky put the ball perfectly where it needed to be on the left side of the net, away from where anyone could stop it.
However, he still loses marks for coming out before the second half of play.
It would have been interesting to see what would have happened with a full game out of the veteran.
Wojciech Szczesny, Arsenal: B-
Although the goalkeeper allowed two goals, it is tough to blame Wojciech Szczesny when he was under pressure from beginning to end.
Olympiakos took 15 shots, and nine of them landed on net. The offense was also able to get six corner kicks, which is tough to overcome.
The blame for this loss should be squarely on the back line instead of the keeper.