The Real Madrid midfielder is out of contract in the summer and looks set to depart in either a cheap January deal or for free at the end of the season. A host of clubs including Chelsea and Manchester United are reportedly interested in signing him.
However, Mertesacker has confirmed that he has taken it upon himself to try and seal a massive transfer on behalf of Arsene Wenger. The Gunners vice-captain says he and Arsenal team-mate Mesut Ozil approached Khedira in an attempt to coax him to the Emirates.
"I’m up for more quality Germans joining the club," he is quoted as saying in Metro.
"Ozil and I spoke to Khedira a few times about joining Arsenal. His contract is up next summer."
Arsenal were believed to be favourites to sign Khedira in the summer, but the player's wage demands eventually stopped a deal happening. However, Arsenal are still ready to offer Khedira as much as £100,000-a-week and the German appears more keen to accept.
Real Madrid exit assured
Khedira has been left on the fringes of the Real Madrid squad by Carlo Ancelotti as the Italian prepares to handle life without him. An injury to Luka Modric could grant him more game time but his contract situation remains unchanged.
Having won the World Cup with Khedira, Mertesacker and Ozil would have hoped that their close relationship with the player would convince him to move to north London. However, Chelsea and Manchester United are likely to provide tempting alternatives.
Jose Mourinho still enjoys a close relationship with the 27-year-old and a reunion at Stamford Bridge sounds appealing, not least because Chelsea appear a much stronger outfit than the Gunners.
Manchester United manager Louis van Gaal would also probably be able to offer Khedira the biggest wages. Should money be a priority for the midfielder, Old Trafford may be most appealing.