Chelsea are discussing the possibility of a post-season tour, a move that could upset numerous international managers. Jose Mourinho didn't rule out a potential 12,000-mile round trip to Japan, home of new sponsors Yokohama Rubber, . No final decision has been made on a destination but if a tour goes ahead, the squad is likely to fly out on either May 28 or 29 for a two-match, week-long trip. Jose Mourinho did not rule out the prospect of a 12,000-mile round trip for a pre-season tour in Japan . The news may concern a string of international bosses who will be relying on Chelsea players for their mid-June friendlies and qualifiers. For instance, Belgium face France in a friendly on June 7 before a vital Euro 2016 qualifier against Wales on June 12. England, Spain and Serbia, who all have Chelsea players in their squads, all have games between June 12-14. Likewise, the proposed tour would also have implications for Chelsea's South American contingent, including Oscar, Willian and Juan Cuadrado, ahead of the Copa America on June 11. FIFA rules state that nations are entitled to players 14 days before the start of a tournament. It is highly likely that those players involved in the Copa America would be given permission to miss Chelsea's post-season tour. Chelsea are yet to finalise plans for their pre-season as they lead the way at the top of the Premier League . Mourinho said: 'I think we'll go on an after-season tour to play a couple of matches in some destination where people will be very enthusiastic to have the Premier League champions, if we win it. 'It's something we are thinking about, a good way to celebrate. Not a victory parade, but a trip, a week where we play a couple of matches but, at the same time, can be together without the pressure of winning every match, without the pressure and tension of the last weeks of the Premier League. 'We can also relax and go to holidays with that good feeling. But we still have nine matches to play. 'Mr Bruce Buck and the board are talking with me. We want to go somewhere where people are enthusiastic to have a club like Chelsea. 'Japan? I don't know but that would make some sense.'
Chelsea are considering a pre-season tour to Japan this summer .
If it goes ahead, the 12,000-mile round trip would likely last for two weeks .
But international bosses will require Chelsea players in June .