Aston Villa may have to be patient to get the best out of new signing Philippe Coutinho, manager Steven Gerrard said, adding that he will "unleash" the midfielder when he is back to full fitness.

Villa signed Brazil international Coutinho on loan from Barcelona last week while France defender Lucas Digne arrived from Everton on Thursday.

Gerrard said Digne is available for Saturday's Premier League home game against Manchester United while Coutinho is short of match fitness.

"He's not match fit because he's been doing a lot of individual training at Barcelona and he also had a COVID situation," Gerrard told reporters.

"It's great to have him, it's my job to get him settled in and enjoying his football again. I'm sure there's a lot of football left in this boy because for me, he's a fantastic talent... At the right time, he'll be unleashed."

Gerrard said both signings showed the club was working in the right direction and praised the support he has received in the transfer window so far.

"We're delighted to have Lucas with his pedigree... When the opportunity came to get him in, we jumped at it. We were aggressive and the club backed me on that," Gerrard said.

"To have two more in the dressing room that have won (titles) is vitally important because that's the direction we want to go in.

"Both footballers will make this group stronger, better and more experienced... It shows the intent from the top of the club all the way down."