Joe Root suggested he could have done with a bigger breakfast before his stunning unbeaten 133 led England to victory over Bangladesh in Thursday's ICC Champions Trophy opener.
The Yorkshireman inspired the hosts to an eight-wicket success, but suffered a bout of what he suspects was cramp in his calf, making running between the wickets uncomfortable.
"It was very satisfying to get the hundred and the team over the line," said Root. "It is what you strive for as a batter in the side to make a big contribution and be not out at the end.
"It is a great statement of intent and it fills us with confidence going into the next game. It is a really good start and something to build on.
"The calf is alright, it looks like it might just be a bit of cramp, I must not have eaten well enough in the morning.
"For a little period of time I was hobbling, but I think more than anything we were just making sure we didn't run each other out. I don't see it as too big an issue."
Bangladesh posted 305-6 at The Oval, but England's chase never looked in doubt and they lost only two wickets en route to knocking off the required runs with 16 balls to spare.
Root was not the only player to suffer an injury worry, with Chris Woakes sustaining a side strain that could end his competition early.