article_snippet: Alexis Sanchez has been suffering a bit of a drought since Mesut Ozil returned to fitness .
article_snippet: A hamstring injury, which ruled Alexis Sanchez out of games against Aston Villa and Tottenham, seemed to stall this season, but there are also concerns about the 26-year-old's role in the team since the return from injury of Mesut Ozil.
article_snippet: While results have picked up since the German's return from injury, the impact on Alexis Sanchez's performances is a concern.
article_snippet: Alexis Sanchez celebrates scoring against Stoke City in early January, Mesut Ozil last goal for the club .
article_snippet: Alexis Sanchez celebrates after scoring against Manchester City, but Alexis Sanchez generally struggles when Mesut Ozil plays .
article_snippet: In the World Cup-winning playmaker's absence, Alexis Sanchez had been operating as Arsenal's No 10, with a license to drift all over the pitch and run at the defence.
article_snippet: The effect has been devastating to Alexis Sanchez's game.
article_snippet: It is a similar story with Alexis Sanchez shooting.
article_snippet: Alexis Sanchez celebrates with Santi Cazorla, who has recently moved to a deep midfield role, to great effect .
article_snippet: Alexis Sanchez has hit the buffers after storming start to Alexis Sanchez career in north London .
article_snippet: It is not just Alexis Sanchez's position that has changed with Alexis Sanchez's return, but also the shape of the team.
article_snippet: This gave Alexis Sanchez a platform, whether from the wing or a more central position, to focus on attacking.
article_snippet: Alexis Sanchez always works hard off the ball, but Alexis Sanchez needed to worry less about Alexis Sanchez positioning defensively.
article_snippet: But it has meant that Alexis Sanchez has had to be more disciplined, tracking back to help out in a light-weight midfield, and spending more time defending than when Alexis Sanchez was the main man.