LONDON, Jan 31 — Patrick Dorgu, who was injured after scoring Manchester United’s second goal in last weekend’s 3-2 Premier League win at Arsenal, may be sidelined for a few weeks or more, United manager Michael Carrick said yesterday.

Media reports said the 21-year-old picked up a hamstring injury that forced him off the field in the 81st minute, half an hour after his left-footed volley put the visitors 2-1 ahead.