Wolves chairman Steve Morgan expects Manchester United to be fined if they field a weakened line-up against Blackpool on Sunday.
United manager Sir Alex Ferguson is keen to rest senior players in readiness for the Champions League final.
Morgan said: "We can only do what we have to do.
"I think United put out a second string against Schalke and it didn't do them much good.
"I don't know what they will do. United are a very professional club and will not want to lose on the final day, on the day they get presented with the Premier League trophy.
"They are not going to want to lose going into the Champions League final."
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