I really hope it's not serious. Feel for the lad.
I think it was Jones who said that Smith Rowe didn't seem to be built for top-level sports though, and you'd have to agree based on how his career has been going so far. It's a big warning sign when players pick up these kind of non-contact injuries in their youth years. Things are not going to get easier from this point, and if you're out 8 months nursing a groin injury at the age of 18 odds are you've got years in sick bay to look forward to.