Out for the start of the season to have an operation on a long standing injury No actual date set for a return - so no-one probably knows! http://www.skysports.com/football/n...-miss-watfords-start-of-premier-league-season
You are right, it makes no sense. I hope that GD, NC, MB & YK are not in a similar situation as none of them played in the friendlies.
Was probably still recovering from his hamstring injury! Or they didn't notice how serious this long standing issue was.