Queen's Gambit Declined: Catalan Opening

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Nf3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O Nbd7 8.Qc2 Ne4 9.Bf4 c6 10.Nc3