Arsenal's English midfielder Theo Walcott (C) celebrates scoring his team's second goal with Arsenal's Spanish defender Hector Bellerin (L) and Arsenal's Spanish midfielder Santi Cazorla during the UEFA Champions League Group A football match between Arsenal and Ludogorets Razgrad at The Emirates Stadium in London on October 19, 2016. / AFP / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)