Alexander Buttner
Dutch reports suggest Buttner has agreed to move to Besiktas. (Reuters)

Manchester United full back Alexander Buttner is poised to leave Old Trafford as his club plan on increasing their efforts to sign Leighton Baines from Everton.

The Dutch defender struggled to compete with Patrice Evra for the left back slot following his arrival at the club lasts season, despite impressing with a goal and an assist on his debut for the club.

Still hopeful of earning a call up to Louis Van Gaal's Holland squad for next summer's World Cup, the 24-year-old is desperate to ensure consistent opportunities come his way this season.

Turkish outfit Besiktas are keen to offer Buttner a first team role and have agreed personal terms with the United man ahead of a season long loan move, according to Dutch publication Voetbal International.

While stressing that David Moyes still envisages a long term future for Buttner at Old Trafford, his agent agrees that a loan move is a sensible option.

"Alexander himself wants more guaranteed playing time in view of the World Cup," Buttner's agent Aleksander Bursac said.

"If that is not in Manchester then we will look temporarily elsewhere."

Buttner's future at United has been in doubt throughout the summer as the club have attempted to bring Leighton Baines to Old Trafford.

The England international was subject to a joint bid for himself and Marouane Fellaini from United that was subsequently rejected, but numerous reports have suggested United have made an improved offer of £38m for the duo.

It is the latest of a string of attempts from David Moyes to bring his former player to United, a pursuit that began with a rejected bid of £12m in June. The 28-year-old is reportedly very keen to be reunited with his former Everton boss and has asked Toffees' manager Roberto Martinez and chairman Bill Kenwright to thrash out a deal with the Premier League champions.

United are still to make a significant addition to their squad this summer ahead of the transfer deadline at 11pm on Monday, but may test Everton's resolve with a further bid.