Sunderland have announced the signing of Manchester United winger Adnan Januzaj on a season-long loan deal.
Black Cats boss David Moyes has returned to his former club to land the 21-year-old Belgium international.
The announcement comes the day after Moyes wrapped up the €7million double signing of United defenders Paddy McNair and Donald Love.
Moyes was delighted to have landed a player to whom he handed a senior debut at Old Trafford, and will now set about the process of restoring him to the heights he hit as he emerged from the ranks.
The Scot said: "It's a big boost because it's the level of quality I would like to bring here, and I am going to try to get him back to the levels he was certainly a couple of years ago.
"Adnan has to now look at himself a little bit and realise that it's down to him now to change it. Yes, he's coming in to a manager who trusts him and believes in him, but he's got to be the one who shows why for the last two years he's not really featured.
"But this boy can play two or three different positions, he's got an ability to go past people, score goals, make goals and he also gives me another young player, and I want to try to add some young players to the squad and give me a sign that I am trying to build a younger, fresh team.
"But as well as that, I do know that I'm having to still get one or two older or senior ones with Premier League experience to make sure we are a Premier League club."
Januzaj, like McNair and Love, will go straight into a squad depleted by departures and injuries for Saturday evening's opening Premier League fixture at Manchester City.
Middlesbrough boss Aitor Karanka has made Cardiff full-back Fabio his 10th summer signing.
The 26-year-old has signed a two-year deal after the clubs agreed an undisclosed fee, believed to be in the region of €3million. The move was announced on Boro's official website.
Fabio - the twin brother of Lyon's Rafael - has made more than 100 senior appearances in English football, with Manchester United, QPR and Cardiff.
West Brom have joined the race to sign Christian Benteke from Liverpool.

The Baggies need to rebuild their strike-force with Saido Berahino expected to leave, and Benteke is under consideration.
The forward will be allowed to leave Anfield, although Liverpool are keen on recouping as much of the £32.5million they paid Aston Villa last year meaning any deal will break Albion's transfer record.
Crystal Palace are also interested in the 25-year-old, who scored nine goals in 14 league starts last season but has fallen down the pecking order under Jurgen Klopp.
Albion pulled the plug on a record £15m deal for West Ham's Diafra Sakho last week after it became clear he would not be fit enough until September.
The Baggies want to line up a new signing before allowing Berahino to leave with the club having accepted it is time to cash in on the former England Under-21 international.
Palace also want Berahino, with an offer of #20million plus add-ons on the table, with Stoke having offered a £20million package for the 23-year-old.
Albion were bought by Yunyi Guokai (Shanghai) Sports Development Limited last week, headed by Chinese entrepreneur Guochuan Lai.
The new owners are also prepared to give the green light to a third bid for Leicester's Jeff Schlupp. Albion have had two bids rejected for the Ghana international but have never given up on the left-sided player.
RUMOURS
Joe Hart fears his time at Manchester City is coming to an end with Pep Guardiola thought to be keen on signing Barcelona's Marc-Andre ter Stegen, the Daily Mirror writes.
Shkodran Mustafi has agreed personal terms with Arsenal, who are expected to pay Valencia upwards of £25million for the defender, according to the Guardian.
Everton are keen on Spain midfielder Juan Mata, who appears to have no future at Manchester United, the Times reports.
Everton manager Ronald Koeman has also admitted the club may not be able to resist a Chelsea bid for Romelu Lukaku the Evening Standard reports.