Cape Town - Manchester United players understand Louis van Gaal's philosophy and are training hard to continue their winning ways.
The Daily Star report that Marouane Fellaini believes a winning Manchester United can still challenge for the title.
United lay in 10th place at the beginning of November after a derby defeat to Manchester City. Little more than a month later, the Red Devils are in the top four and a win away at Southampton on Monday would send United into third spot behind last season's winners, Manchester City, and league leaders, Chelsea.
"It's good that we've won four straight games and we have to continue like that, to continue to play, to win, its important for the confidence." Fellaini told reporters after scoring against Stoke City.
"We know each other a lot better now, we know the manager and the staff. We know the philosophy of the manager, we train hard as well, so we have to continue like that.
"If we do that, when the teams come to Old Trafford it will be difficult to beat us.
"I think we wait for a mistake (from Chelsea), but we have to look at us, we have to take it game by game and we will see after - after Boxing Day we have a lot of games and we have to keep winning. We can still challenge."