Borussia Dortmund are again considering a move to bring back Shinji Kagawa from Manchester United but they will face competition from Valencia.

Peter Lim, Valencia owner and business partner of agent Jorge Mendes who facilitated Angel di Maria's transfer and looks after Sporting's William Carvalho, is keen on the idea of Kagawa joining the Spanish side as the move would help expose the club to a large market across Asia.

Dortmund's colourful coach Jurgen Klopp says he could weep when he considers how the 25-year-old has fared at Old Trafford after leaving the Bundesliga side for Old Trafford in 2012.

Back to Borussia: Shinji Kagawa's former club Dortmund could be set to take him back to the Bundelsiga

Walking away: Kagawa could be about to turn his back on Manchester United after two years at the club

But United coaches have consistently struggled to get the best out the Japanese midfielder.

He has been one of the names mentioned in proposals with Juventus over Arturo Vidal as a series of deals begin to take shape.

Inter Milan have sold Ricky Alvarez to Sunderland but their unsettled midfielder Fredy Guarin has rejected a move to Zenit St Petersburg because he hopes Juventus will sign him to replace Vidal.

Inter are also interested in Kagawa but would prefer Xherdan Shaqiri from Bayern Munich.

Bayern have signed Xabi Alonso, who was considered by Manchester United recently, while Real Madrid have an interest in Vidal also.

Clock is ticking: Arturo Vidal (right) is tipped to leave Juventus before the transfer window shuts