Morrison has been on-loan with QPR.
"He is available for QPR's play-offs. We did the loan deal with (QPR manager) Harry (Redknapp) and obviously he has changed the team an awful lot to rest his key players for the first play-offs," Allardyce said on why Morrison was at the Hammers game rather than QPR's 3-2 win at Barnsley.
"If Ravel does a good job he will be back with us next year and he will have a big pre-season with us and see where we will go from there."
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