By Simon Austin

King is expected to return from injury to play at fly-half

Ian McGeechan says he faces the most difficult selection dilemmas of his Wasps career ahead of Sunday's Heineken Cup semi-final against Northampton.

Alex King is set to return from a knee injury at fly-half, meaning Danny Cipriani could switch to full-back in place of Mark van Gisbergen.

James Haskell, Johnny O'Connor, Lawrence Dallaglio, Tom Rees and Joe Worsley contest the back-row spots.

Director of rugby McGeechan admitted: "Good players are going to miss out."

King is expected to return after missing the league wins against Saracens and Northampton because of a knee injury.

"It's been slow to settle down but we hope he'll be back running on Wednesday," said McGeechan.

If (Cipriani) gets his head down and a few more games under his belt he's an England prospect Mark van Gisbergen

He added: "This time last year we were almost on a wing and a prayer because we had no options through injuries.

"This year we've been able to manage our players well and there's a lot of choice."

McGeechan also hit out at the cost of tickets for the semi-final at the Ricoh Arena.

"I'm just disappointed there are tickets at �45 that are putting people off," he told BBC Radio Northampton.

"I'd rather see a full stadium and people paying the money when they get there rather than have to pay the earth to get a seat.

"That's disappointing from a Wasps point of view and I'm sure a Northampton point of view."

In response, ERC, the company that organises the Heineken Cup, said 75% of the tickets sold would be �35 or less and that concessions are available.

Van Gisbergen, who played in Sunday's Premiership win over Northampton, admitted there would be "some interesting calls" for Wasps' coaching team.

The full-back has endured a difficult season after breaking his jaw and losing his place to Cipriani after returning to New Zealand to get married.

He told BBC Sport: "This year's been pretty indifferent for me because of things that have happened.

"For the four-and-a half years I've been here I've been starting, then this year I've come in and out of the side.

"But now I'm feeling good and fresh and hopefully when your chances come you take them."

He also praised 19-year-old Cipriani, who has broken into the first team this season.

"He took the opportunity at full-back when I went home and then he played 10 last weekend.