Cardiff Blues face reigning champions Leinster in the Heineken Cup quarter-finals in Dublin on 7 April.
“The medical people think it might just be a nerve problem, but we will know more in the next couple of days. I obviously want to be fit for the Cardiff Blues’ Heineken Cup quarter-final,” Warburton told the Daily Telegraph.
“But I’m just not sure whether that will be possible at the moment. In truth my body has been creaking for a while, since the World Cup.”
The results of the scan showed there is no structural damage to Warburton’s shoulder, but the Blues flanker is still unsure how long he will be out for.
“I can’t really remember how it happened. All I know is that there was an overthrown line-out towards the end of the first half and I went to catch it but simply couldn’t raise my arm to do so,” he said.
“Then there was a ruck where I wanted to grab hold of Thierry Dusautoir, but I just couldn’t get hold of him because of my shoulder, and he ended up turning the ball over.
“I was so angry. Not least because I knew then that I was going to have to go off in the biggest game of my life. After the game I had a decision to make – go for a scan immediately or wait until Sunday morning?
“There were scenes of such joy that it was a tricky decision. The scan took only 20 minutes, and with a 20-minute journey to and from the Hospital, I was back in time for the after-match function safe in the knowledge that there was nothing structurally wrong with my shoulder.”
Warburton led Wales to victory over Ireland in the opening game of the RBS 6 Nations, but once again only lasted a half because of injury. He then missed the games against Scotland and Italy.
In the end, the Blues openside was forced to receive the RBS 6 Nations trophy with his arm in a sling – and with a bit of a sheepish look on his face.
“It was a brilliant feeling, but it was also rather strange. My own situation was made stranger by the fact that I had not completed the full match. There were other players in the squad who played almost every minute of every game.
“I’ll be honest and say that I felt a little awkward about going up to receive the Six Nations championship trophy. I mentioned this to Warren Gatland and asked if he might like to come up with me and lift it together. He said no immediately.”
Warburton then turned to triple Grand Slammers Gethin Jenkins, another Blues player with a Heineken Cup final to look forward to, and Ryan Jones, who had both led Wales during their successful campaign.
“I asked them. “No, it’s your moment, you do it,” they both replied. Fair play to them. It was a superb gesture on both their parts and it certainly made me feel better,” Warburton added.
