Foster has slipped down the pecking order at Old Trafford after making a few gaffs earlier in the season, now Tomasz Kuszczak is being preferred in goal while Edwin van der Sar is still sidelined.
Rumour had it that Foster would be allowed out on loan but Sir Alex says that is not the case.
"Nothing's going to happen with Ben.” Said the United boss.
"He is here and this is where he stays."