The 36-year-old has had to settle for a place on the bench so far at the World Cup, but the long-serving Lampard claims that he hasn't made up his mind about his plans post-World Cup.
He told reporters: "I haven't made a decision on my future. I'm pleased to be involved tomorrow. After the game I'll think about my future.
"We are all disappointed with the campaign, but I can't say that looking back on my career it's been a disappointment."
England meet Costa Rica in their final game on Tuesday, in a game that will see Lampard start.