UPDATE 2-Soccer-Barca see off Schalke to set up United showdown

(Adds Puyol missing first leg v United, final par)

By Simon Baskett

BARCELONA, April 9 (Reuters) - Barcelona placated their discontented fans and set up a mouth-watering Champions League semi-final against Manchester United with a nervy 1-0 win over Schalke 04 at the Nou Camp on Wednesday.

Barca, 1-0 up from the first leg of the quarter-final in Gelsenkirchen, were put under severe pressure in the opening half hour but the Schalke storm blew itself out just before halftime and the Catalans were gifted a goal after a series of mishaps in the German defence.

Midfielder Yaya Toure scuffed the ball in from close range in the 43rd minute after a Bojan Krkic cross from the right had ballooned off the foot of a defender and was then headed off the line.

Barca, the only non-English side in the last four, will host United at the Nou Camp in the first leg of the semi-final on April 23 and visit the Premier League leaders at Old Trafford the following week.

Liverpool face Chelsea for the third time in four seasons in the other semi-final.

"We are delighted to get to the semi-finals and especially to play against Manchester," club president Joan Laporta told Canal Plus television.

"We are really looking forward to it and I'm sure the fans will enjoy it too."