Everton skipper Phil Jagielka recognises the shadow of Chelsea captain John Terry hanging over the England squad.
There had been calls for Terry, who retired from international duty in September 2012, to make himself available for Brazil.
The Everton centre half admitted: "It's difficult. I can't say I like to hear it, but I understand why I do.
"Obviously Cahill and Terry play together at Chelsea, they play in the Champions League and were contenders to win the Premier League.
"As a defender, partnerships are important. If you have two players who work well together they may be a better bet than two superior players, so I can understand why people talk about Terry.
"England's defence in the qualifiers was pretty decent, but I can't decide what people ask. I stop, smile and get on with it."
