Two minutes later, Januzaj turned provider as his corner found Zaha in far too much space inside the box and the England international took a couple of touches before drilling a low shot past Lynch. Januzaj had another couple of efforts before being replaced on the hour mark and the chances dried up for a spell.
Cole tested Lynch again with a decent shot but the keeper had no chance when Tom Lawrence's tackle allowed the midfielder to drive through the defence and bury a sweet finish to add a late fourth.
United: Amos; Varela, M.Keane, Thorpe, Fabio; Zaha (Barmby 80), Ekangamene, Cole, James; Januzaj (Blackett 60); W.Keane (Lawrence 70). Subs not used: Sutherland, Love.