Millwall have made Dundee United midfielder Derek McInnes their 10th signing of the summer.
McInnes says Millwall's offer is too good to turn down
The 34-year-old Scotland international has agreed a two-year deal at the New Den and began training on Monday.
McInnes told the Lions' website: "I was not particularly looking to move back down South again.
"But when I talked to (boss) Nigel Spackman, realised how much he wanted me here and how impressed I was with the set-up, I knew it was right."
The former Rangers and West Brom midfielder had talks with St Johnstone but said last week that Millwall's offer was "too good to turn down".
"Their boss Nigel Spackman came a long way to meet me in terms of conditions and that made a big difference."
He added: "I will be allowed to fly back to Scotland after games and come back down to London again on Wednesdays. When I am up here Nigel trusts me to train myself.
"And when I can't get up to Scotland the club will fly my family down to see me and so my wife Nicola is behind me in accepting the deal.
"It means that I get the best of both worlds, I get to play for Millwall, which I'm keen to do, and see my wife and sons, Jack and Harry, often enough.
Nigel Spackman has made me feel important and he sees my experience as vital
"I'm excited about the prospect of playing in England again.
"Nigel is very ambitious for the club and he wants to get back out of League One this season.
"It's a compliment to me that he wants me, even though I am nearly 35 but my fitness is good.
"He has made me feel important and he sees my experience as vital to helping the youngsters in the squad.
"I'm looking forward to it and I feel that I'm doing the right thing."
Also heading out of Tannadice in the next few days will be Grant Brebner.
The former Hibs and Manchester United midfielder has been told he does not feature in manager Craig Brewster plans and is currently in Australia.
Brebner is not expected to return for pre-season training, with a senior Tannadice source suggesting that a settlement between the club and player will be be reached in the next few days.
United do expect Paul Ritchie, Jim McIntyre and David Fernandez to report back for training next week.
All three have been told they will not feature in the first team next season, but so far none of them have been able to reach a financial agreement to leave the club.