Arsenal's Spanish defender Hector Bellerin (L) stretches to block a shot from Manchester City's Belgian midfielder Kevin De Bruyne (R) during the English Premier League football match between Arsenal and Manchester City at the Emirates Stadium in London on December 21, 2015 (AFP)
Arsenal's Czech goalkeeper Petr Cech (3L) jumps to make a save during the English Premier League football match between Arsenal and Manchester City at the Emirates Stadium in London on December 21, 2015 (AFP)
Theo Walcott scores the first goal for Arsenal during the English Premier League soccer match between Arsenal and Manchester City at the Emirates stadium in London, Monday, Dec. 21, 2015 (Reuters)
Theo Walcott celebrates scoring the first goal for Arsenal with Mesut Ozil during the English Premier League soccer match between Arsenal and Manchester City at the Emirates stadium in London, Monday, Dec. 21, 2015 (Reuters)
Arsenal's Theo Walcott, front, celebrates with teammates after he scored the opening goal during the English Premier League soccer match between Arsenal and Manchester City at the Emirates stadium in London, Monday, Dec. 21, 2015 (AP)
Arsenal's French striker Olivier Giroud (L), Arsenal's Spanish defender Hector Bellerin (C) and Arsenal's English midfielder Alex Oxlade-Chamberlain celebrate following the English Premier League football match between Arsenal and Manchester City at the Emirates Stadium in London on December 21, 2015 (AFP)
Manchester City's Raheem Sterling in action with Arsenal's Aaron Ramsey during the English Premier League football match between Arsenal and Manchester City at the Emirates Stadium in London on December 21, 2015 (Reuters)
Manchester City's Kevin De Bruyne in action with Arsenal's Per Mertesacker during the English Premier League football match between Arsenal and Manchester City at the Emirates Stadium in London on December 21, 2015 (Reuters)
Manchester City's David Silva is shown a yellow card by referee Andre Marriner during the English Premier League football match between Arsenal and Manchester City at the Emirates Stadium in London on December 21, 2015 (Reuters)
Arsenal's Olivier Giroud, left, challenges Manchester City's Kevin De Bruyne for the ball during the English Premier League soccer match between Arsenal and Manchester City at the Emirates stadium in London, Monday, Dec. 21, 2015 (AP)
Theo Walcott celebrates scoring the first goal for Arsenal with Mesut Ozil during the English Premier League soccer match between Arsenal and Manchester City at the Emirates stadium in London, Monday, Dec. 21, 2015 (Reuters)