Mowbray to keep strongest side

And the boss today warned his side of the threat of League One Peterborough as Albion prepare to renew their special relationship with the Cup. Mowbray is anxious to build on home victories against Manchester City and Tottenham with success over Darren Ferguson's side at The Hawthorns. "We hope to keep that momentum going," said Mowbray.

"We'll be approaching the game as we do every Premier League game.

"If you start taking your eye off the ball a little bit or don't apply yourselves quite as well then you can find yourselves on the wrong end of an upset.

"Peterborough are capable of upsetting a bigger side because they've got goals in their team.

"They've got coveted players in their team. They scored six goals against Cheltenham at the weekend. They won't be afraid of the tie and will see it as a good challenge.

"We played them a couple of times last season and they know us and we know them.

"It's their first time at The Hawthorns and may be the bigger occasion will inspire them. We've got to make sure it's a difficult day for them."

Mowbray is not about to make sweeping changes for the meeting with Posh after a "shadow side" suffered a Carling Cup upset at Hartlepool in August.

The starting line-up is expected to be more or less unchanged from the 2-0 victory over Spurs although Gianni Zuiverloon could be allowed to rest his tight hamstring with Carl Hoefkens standing by to step in.

And, having complemented an historic Championship triumph with an FA Cup semi-final appearance at Wembley last season, Mowbray is well aware of the potential magic of the competition.

"The FA Cup provides a very important game for us," said Mowbray.

"We've had some decent success in the FA Cup over the last two years and I think it's important we try to approach this game in a very positive frame of mind.

"As in any football match, if i've got doubts over players or I don't think they can play then they won't be playing.

"I'll try to pick the team I think is right to go and win the match. I wouldn't lessen this competition and treat it as a bit of relief."

Mowbray's team progressed to the last four last season without the benefit of a home draw. This season's draw has already been kinder to Mowbray and Co with tomorrow's fixture but Mowbray is well aware things could change.

"I don't think the FA Cup has ever changed," said Mowbray. "It's all in the draw. You need to carry a bit of good fortune along the way.

"You need to have some good days but because it's only six games and you can find yourself very close, very quickly.

"I think that's why the FA Cup comes along you concentrate on that day and try to get the job done."