Grimes has signed at Leeds on loan for Swansea City for the duration of the campaign.
The young midfielder has only had a few training sessions with the Whites, but he feels that he has settled in well.
“Really good,” Grimes said, when asked how he felt that his first Leeds training session went.
“I feel like I’m fitting in quite well, but I went out training today. First session with the ball. So it’s all positive.
“I have worked with the gaffer, Pep and James Beattie. I know Barts [Kyle Bartley] and Alex Mowatt, from playing with them previously, but it’s a good group of lads and I’m settling in well.”
Grimes is one of six signings that Leeds have made so far this summer, with Garry Monk being quick to strengthen his team.
Grimes has only played a few matches at Championship level to date, after spending time on loan at Blackburn Rovers last season.
The 20-year-old is well known to Monk, however, as the 38-year-old was the man who brought him to Swansea from Exeter City.
Grimes’ importance to Leeds has grown, following the departure of Lewis Cook.
Cook was set to be Leeds’ main midfielder next season, but it will now be up to Grimes to help cover for the void that the 19-year-old’s move to Bournemouth has left.