Sir Alex Ferguson has praised Shinji Kagawa for the impact he has had since joining Manchester United from Borussia Dortmund in the summer transfer window.
The Japan international moved to Manchester for a fee of £17 million having helped Dortmund to a German league and cup double and has immediately adapted to the rigours of the Premier League.
Kagawa has quickly won over the Old Trafford faithful with a number of cultured displays for his new club, while the 23-year-old has also impressed his Manchester United manager.
"He's been terrific. He's a very good professional, finds space very well and he's got me two goals. And he could have scored another two! He's a goal threat," Ferguson told a press conference ahead of United's meeting with CFR Cluj.
"It's not easy to adapt to English football but bit by bit he's getting down to that part."
Kagawa is in United's squad to face Cluj on Tuesday evening although may be rested ahead of the weekend's Premier League encounter with Newcastle at St James' Park.
United will be keen to bounce back against the Toon following their defeat against Tottenham last Saturday, which left the Red Devils four points behind league leaders Chelsea.