Three Norwich City players have suffered injuries during the club's pre-season tour of Germany as they prepare for life in the Premier League.

Adam Drury, James Vaughan and Marc Tierney are now all expected to miss the Canaries' upcoming friendlies, starting with tomorrow's encounter at Crystal Palace.

"Adam [Drury] has just got a slight knock on his calf at the minute. It's nothing serious," manager Paul Lambert told The Pink'un.

"The other two boys got knocks as well - they're only slight - so we are not taking any chances with them.

"They've done most of the running and fitness work. It's not important if they miss the odd game in pre-season as long as they are ready for the first game in the league."

Norwich open up their league campaign with a trip to Wigan Athletic on August 13.