Manchester United boss Sir Alex Ferguson is excited about his latest group of Fergie Fledglings.

The 5-0 league win over Wigan on Wednesday night suggested he had reasons to be optimistic. In particular, the performance of 19-year-old right back Rafael da Silva stood out and the introduction of his twin brother, Fabio, later in the game raised the possibility once more of the club moving into the future with two full backs from Brazil in the team.

"We've always thought highly of Rafael and Fabio," added Ferguson. "It's a possibility that in five years' time we will have two Brazilians as our first-team full backs. They are definite possibilities ability-wise.

"They have both been unfortunate with injuries but if they get an injury-free run, they will be top players.

"Patrice Evra is a terrific example for them. He's had a fantastic season. But they are Brazilians and I don't think you need to give Brazilians any targets. They are always ambitious, aren't they?

"I think all the young players here are doing well. I'm not unhappy at all with them. Their progress has been good and they have taken their opportunities.

"Danny Welbeck [19] came on the other night against Wigan and did a bit, Rafael was outstanding.

"Unfortunately, Federico Macheda [18] is injured at the moment but we know the qualities he has. Gabriel Obertan has joined the club and at 20 years of age he has fantastic potential. So all the young ones are doing very well."