Ireland centre Robbie Henshaw is due to find out when he will return to action after meeting with a surgeon next week.
Henshaw missed the deciding Test in Ireland's three-game series against South Africa in June after damaging knee ligaments.
The new Leinster signing, from PRO12 champions Connacht, is expected to miss the opening weeks of the season with his new club and Henshaw admits the setback initially came as a shock.
"It's not an ideal start for me," he told the Irish Independent.
"I was pretty shocked to hear when it happened.
"It's one of my first big enough lower limb injuries. It's not ideal. Starting with a new club you want to make a massive impact from the get go so it's not a good start for me. The only thing I can do is do the best I can to recover and get back."
The 23-year-old also offered an opinion on who should replace Ireland head coach Joe Schmidt if he decides to step down next year.
Henshaw naturally has an enormous amount of respect for Schmidt – "He opened my eyes to that next level, at the international level – the level of detail that's needed to succeed." – but should the New Zealander head home he knows exactly the man to replace him; Pat Lam.
"I think he'll definitely be considered, there's a lot of names around. I'm not sure who's in for it, if it comes up, but I think what he's done at Connacht is incredible," Henshaw added.
"It took a couple of years for his game plan to get settled in but once we were comfortable with it we reaped the positives. He'd definitely be considered, he's a top class coach."