Manchester United manager Sir Alex Ferguson and Mike Phelan were in attendance at Saturday's German Cup final - with Shinji Kagawa impressing.
Kagawa did himself no harm in front of the interested spectators, scoring the opener as Dortmund cruised to victory over Bayern Munich to complete the German domestic double.
The Japan midfielder has opted not to sign a new contract with his current club and has said he would make a decision about his future after tonight's game.
Ferguson's presence - less than 24 hours before his own side will try to defy overwhelming odds and retain their Premier League crown - does seem significant.
The Red Devils chief has been under pressure to bolster his midfield for some considerable time now and missed out on Samir Nasri last summer when he was outbid by Manchester City.
Kagawa, 23, would appear to be the perfect solution, having proved his worth during two outstanding seasons in the Bundesliga.
His age also fits the United profile of buying young players who are still to reach their peak.
After the game, Kagawa said: "For sure Manchester is a great club, but what the future holds I do not know yet."
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