Arsenal won the 2015 FA Cup 4-0. Three of the four internationals who scored that day have since left the club. Which one is still with Arsenal?
2015 FA Cup Final:  Arsenal won the match 4–0 with goals from Theo Walcott, Alexis Sánchez, Per Mertesacker and Olivier Giroud, for a record 12th title. Theo Walcott: Theo James Walcott (born 16 March 1989) is an English professional footballer who plays as a forward for Premier League club Arsenal and the England national team.
Per Mertesacker