Wales centre Jamie Roberts hopes to make his Harlequins debut as soon as next weekend despite being injured playing for Cambridge in the Varsity match.
Roberts, 29, suffered a dead leg in the first minute against Oxford but played until half-time before being replaced.
Oxford won for a sixth consecutive year with a 12-6 victory.
"It was disappointing having to come off in a game of this magnitude," Roberts said.
"It was one of those injuries you can't do anything about."
Roberts will now join up with Harlequins, the English Premiership side who he joined from French side Racing 92 in May 2015.
He hopes to feature in Quins' home game against Calvisano in the European Challenge Cup on Saturday, 19 December.
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"I really want to get stuck in straight away. The team are going well so I'll have to fight for my place," Roberts added.
The British and Irish Lions centre is studying for a part-time masters degree in medical science at Queens' College, Cambridge.
He became the first active international player since Australian second row Dan Vickerman in 2009 to play in the Varsity match.
But the former Cardiff Blues player confirmed the 2015 match at Twickenham was likely to be his only Varsity appearance.
"I doubt I'll be back. The timing was perfect this year so it was disappointing that I could only last 40 minutes," Roberts said.