Think it was mentioned in the old Lamela thread. Something about him being out for 12 weeks after the second surgery which meant October. Can't remember exactly but it was reported in some press circles I think.
Right now we still have the same same team that finished the season brilliantly. Ok, so Walker has gone, but through being injured and being replaced by Trippier for many of those games, I personally don't think his loss is as big as some others make out. I am still hopeful of a couple of signings to increase the depth of the squad plus 3 or 4 of the youngsters coming through appear to me to have what it takes to be at least reliable bench players for some of the games giving our stars rest games.
As has been pointed out on here, luck (both good and bad) can disrupt the best laid plans. Given the rub of the green, I see no reason why we can't look forward to the coming season with confidence and that our journey on becoming a top genuine EPL team will continue.