Manager Chris Wilder admitted Oxford are going through a sticky patch after their 4-1 reverse at Crawley and urged his side to pull through together.
Saturday`s defeat left the U`s with only two wins from their last eight games in all competitions, while they have now taken only one point from their previous four away league matches.
Wilder admitted: "We are in a bit of a difficult situation now, but there are 46 games in a season and teams will have bad periods. These things happen and we need to get over this.
"We need to find a way through it together. It's not a crisis because we have lost two league games on the spin."
Wilder feels the time has come for his players to redouble their efforts, and added: "You must take responsibility and do your jobs. It is a test for the players now they have lost two on the bounce."
Regarding the defeat at Broadfield Stadium, he said: "After going 2-0 behind so early on it was a difficult situation to be in. Crawley got off to an absolute flyer and although we started to improve and got a goal back, Crawley's third goal just before half-time absolutely murdered us."