Bastian Schweinsteiger
Bastian Schweinsteiger has returned to first-team training with Manchester United Getty Images

Manchester United midfielder Bastian Schweinsteiger should leave Old Trafford, despite returning to first-team training. That is according to Bayern Munich CEO Karl-Heinz Rummenigge, who has urged the World Cup-winning star to seek a move during the January transfer window.

Schweinsteiger, 32, has been omitted from the United squad so far this season – but was recently reintroduced to training with the first team. Despite this, Rummenigge has advised the former Bayern captain to leave the Red Devils.

"My wish for him is that he finds a solution once the transfer window opens in January," he said of the United midfielder, according to Bild.

United boss Jose Mourinho previously insisted that, although he had no personal issues with Schweinsteiger, it would be tough for the German to play for United again. The manager's stance has drawn criticism from Rummenigge, who questioned Mourinho's handling of the situation.

"It's difficult to manage a generation change but, nevertheless, you have to do it with tact," he said of the United coach.

Schweinsteiger's return to the first-team fold has been welcomed by United defender Luke Shaw, who said the German is a positive influence on the team. "He's a big influence in the dressing room and obviously on the pitch, especially for the young players like myself," Shaw said, according to ESPN. "It's a great boost for us, the experience and the quality that he brings. The quality he possesses is a boost for our team and I'm so glad to have him back.''

Schweinsteiger is similarly enthusiastic about his return to training with the first team. The midfielder – who has remained tight-lipped about his absence from the squad – took to Twitter on Monday (31 October) to reveal his joy at being called up by Mourinho.

Alongside a picture of himself during training, the United midfielder wrote: "Felt great today! Team is in good shape, results will follow!"