Manchester United manager Sir Alex Ferguson will warn his players against complacency when they face Mauricio Pochettino's Southampton on Wednesday.
Pochettino took over from sacked manager Nigel Adkins this month, despite Southampton having recently enjoyed an encouraging run of form.
The Argentine's first match in charge saw his side impress against Everton as they played out a goalless draw with the Toffees at St Mary's.
Pochettino next takes his team to Old Trafford, and, while Ferguson does not know a great deal about his counterpart, the Scot is wary of the opposition.
"Yeah, I'll get some information," Ferguson told the club's official website. "I don't know a lot about him to be honest but I will have a chat with my brother [Martin] as he's been scouting in Spain. It won't matter in this particular game as he's just at the club but they had a fantastic response against Everton.
"They should have won as they were superb and could have been five-up in the first half. Tim Howard had a fantastic game [in goal for Everton], they hit the woodwork and Rickie Lambert missed a couple of chances. They played really well against Everton who are at the top of their game and playing really well.
"So we're not taking anything for granted. We've got Southampton on Wednesday, then we go to Fulham and then it's Everton at home. These are big games, massive games.
"Teams will drop points [in the title race]. Not just us but Manchester City will drop points, absolutely, it's a certainty. Chelsea and Arsenal will drop points. We'll probably drop two or three ourselves but the important thing is accepting the challenge that every game is just as difficult as the rest."