Manchester United manager Sir Alex Ferguson has warned his side against underestimating Sporting Braga.

The Premier League giants will host Braga at Old Trafford in the Champions League on Tuesday.

"For me, Braga are better away from home and they proved that with their 2-0 win at Galatasaray," said Ferguson.

"So, once again it looks like counterattacking football will play a big part, which we also saw in our first game here against Galatasaray.

"They caused us problems but we managed to hold out until half-time and took a hold of the game in the second period."

United are currently at the top of Group H with six points from two matches.