Arsenal have been working on their weaknesses during their warm-weather training camp in Dubai.
The Gunners are among the Premier League teams that got a little time off after the busy holiday schedule of games.
Per The Standard, Arsenal have been working on defensive and offensive set pieces.
Arsenal have scored 11 goals from attacking set-pieces, which is the most in the league.
However, they have conceded four set piece goals in the past six games, after letting in only one in their first 14 games.
Boss Mikel Arteta knows his side need to iron out such issues if they are to maintain a title race.