Jadon Sancho's future at Manchester City has been plunged into fresh doubt after it emerged that the teenager failed to turn up for training on several occasions following Pep Guardiola's decision to omit him from the club's pre-season tour of the US.

Bundesliga clubs Red Bull Leipzig and Borussia Dortmund have joined Arsenal and Tottenham in the race to sign the highly rated England Under-17 winger as he appears to head closer to the exit door at the Etihad Stadium.

Sancho was expected to join fellow rising stars Phil Foden and Brahim Diaz on City's tour of Houston, Los Angeles and Nashville over the past fortnight but he was left behind after indicating that he could leave this summer.