Negotiations between the two clubs were continuing last night after United officials were approached by their counterparts at The Hawthorns about the possibility of signing the former Preston North End centre-forward.
Although Chris Wilder indicated he was not minded to sell Robinson, believing the Republic of Ireland international has the potential to develop into a member of his starting eleven, the fact discussions remain on going confirm he does believe the 24-year-old will benefit from regular football at this stage of his career.
Robinson has scored twice in 19 Premier League and cup outings since leaving Deepdale during the close season, although seven of those have come from the bench.
West Brom, the Championship leaders, would be required to pay a loan fee to recruit Robinson and make a contribution towards his wages should they push a deal through.
With Slaven Bilic’s employers still in receipt of a parachute payments after being relegated from the top-flight in 2018, that is likely to be a significant percentage rather than the smaller sum United might accept from another EFL team.
West Brom entered last night’s game against Cardiff City, who could face United in the FA Cup fifth round, a point ahead of second-placed Leeds.
But Bilic is keen to freshen-up his squad after a poor run of results over the Christmas and New Year period.