Derby County midfielder Ben Davies has signed a new one-year contract.
Davies was due to become a free agent at the end of the season, but after a campaign in which he scored five goals in 26 appearances, boss Nigel Clough was keen for him to stay.
The 31-year-old joined the Rams from League 1 side Notts County during the January 2011 transfer window for an undisclosed fee.
Clough said: "We are pleased Ben is going to be sticking around for another year. He's been an important player for us, especially in the second half of the season when we've started with him and when he's come off the bench in games.
"Ben understands he might not be starting single every week, but he appreciates how highly we value him and knows he can still have an impact on the side.
"On numerous occasions this season, we've seen Ben's versatility; he's played right across midfield and also in both full-back positions as well, so if there's an emergency we know he's capable of doing that job.
"He never moaned about it either, he just got on with his job and that's what we like about him. We didn't involve him early in the season but that wasn't anything against him. But what Ben did was keep his head down and work his way back into the side.
"He is a fit lad so there are no doubts on that front, his attitude is exemplary and he's a great player to have around the place."
The Lions are in the hunt for a new boss following the departure of long-serving Kenny Jackett earlier this week.
Paul Dickov and Marc Bircham are among those linked with the vacancy, but Ambler insists the club will not even draw up a shortlist until next week.
He told the club's official website: "The process is ongoing.
"We're aware of widespread reports in the media but I'd like to clarify to supporters that we are yet to approach anybody about the position left after Kenny's resignation.
"Naturally, there will be speculation, and as a Board we've been enthused by the number and quality of applicants that have put their names forward so far.
"But that is only as far as it has got. It's still just a matter of days since the process began and the club will take all the time it needs to find the appropriate person to fill the vacancy."
