The Stoke man was the latest to miss a session this week, although his condition is not a concern for manager Giovanni Trapattoni.
Goalkeeper Shay Given was in London today to see a knee specialist, while defenders Richard Dunne and Sean St Ledger continued to nurse their muscle injuries.
But John O'Shea and Kevin Foley were able to do some training on the pitch at Gannon Park as they stepped up their recoveries from ankle and hamstring problems respectively.
Paul McShane, who was called up as defensive cover for Saturday's friendly against Bosnia, worked with his team-mates for the first time.
Barcelona will wear this new home soccer jersey next season. They also have a new away jersey. Get them both.
Neymar's move from Santos to Barcelona is no doubt the biggest summer transfer.
Manchester City will try and win back the Premier League title with this new soccer jersey from Nike!
The hoop soccer jersey is classic and cool. The USA hooped jersey is perfect for every fan. Get in the Gear.
Germany is one of the top teams ever and they will play the US on Sunday.
Jamaica is in need of a win against the U.S. Get the jersey of the Reggae Boyz.
The USA will wear their blue away jersey against Jamaica in their World Cup qualifier on Friday night.
The adidas Nitrocharge is the most talked about new cleat in years. It was released on May 15 and will take your pitch by storm.
Support the USA national team with an official 2013 Centennial soccer jersey from Nike. Its Official.
England will debut their new away jersey against Brazil at the Maracana Stadium on Sunday. Get in the Gear