Speaking on Sky Sports, the 38-year-old said, "There are some very good players in that squad and the performances are way below par. You look at the injuries and some of those players could play; 100 percent.
"You have a European Championships coming up and an FA Cup final coming up. It is easy for players to stay out for a little bit and then come back towards the European Championships. I have seen it myself over the years. I just think the players who have been injured are not filling themselves with any credit at the minute."