Published Monday, 20 April 2009
O'Sullivan begins his reign as USA head coach with a Test next month against Ireland in California but he is not expecting the core of the Irish Grand Slam-winning side to face his Eagles in Santa Clara.
"I think it could be as many as 10 of that starting XV that could make the Lions and that's not an extraordinary number," O'Sullivan said.
"They have been the form team of the (RBS 6 Nations) championship along with Wales, who'll have a big say in it as well, but picking on form I think Ireland will have a big say in the Lions tour."
O'Sullivan won three Triple Crowns as Ireland coach since taking over from Warren Gatland in 2001 and before stepping down at the end of the 2008 Six Nations.
His successor Declan Kidney guided the men in green to a Grand Slam at the first attempt but O'Sullivan was full of praise for the Irish success.
"I was delighted for them. That Irish team that has been together for the last six, seven or eight years deserved to win the Grand Slam.
"We've been close with that Grand Slam for a number of years and it just didn't happen for us and I think they realised that if it didn't happen this time it would never happen for that group of players.
"That doesn't mean Ireland won't win Grand Slams in the future - I'm sure they will - but the fact that those players that won in Cardiff, most of them have been on the road a while and they deserved that level of success."
O'Sullivan is equally delighted to be coaching international rugby again having returned to the United States where he was the Eagles backs coach and USA Rugby technical director from 1997 to 1999.
"I've had a good year off, had a chance to recharge the batteries, so I'm very excited to be back coaching but even more excited to be back in the US," he added.
Now he faces back-to-back Tests with Ireland, on May 31, and Wales in Chicago on June 6, his first game in charge representing a dream start to his tenure as he gets preparations under way for 2011 Rugby World Cup qualifiers against Canada this summer.
"I'm very excited about it. If you had to pick a game to start your coaching career in the US it would have been Ireland so there you go."