League One transfer rumours: Sunderland have to 'offer bigger cash or move on' in pursuit of defender, Doncaster Rovers set to bring in 'decent' Premier League loanee

The 19-year-old rejected a new contract from Tottenham Hotspur as he wanted the promise of first-team football and so Sunderland snapped him up.

So who is he and what did Jose Mourinho say about him?

Cirkin lacks any real senior experience and was yet to feature in Spurs’ first team, though was named on the bench in five games across all competitions - including Europa League.

The left-back has also featured in European competition at youth level, facing the likes of Ansu Fati at Barcelona.

When the England youth international signed his first professional contract two years ago, he earned praise from then-boss Jose Mourinho.

“I couldn’t be at the game but I watched on video our youth team playing in the [UEFA Youth League] and we also have [Dennis Cirkin],” He said.

“Ok, he’s 17, but he’s a kid with a lot of quality, and I look forward to bringing him to train with us, and to help his development.”

We gathered the best of today’s League One transfer gossip below...