The England national selector, Geoff Miller, has admitted there are concerns over the fitness of Stuart Broad, England's Twenty20 captain, and that a time may come when he cannot be part of the side in all three formats of the game. Broad, who flew home early from the Test series in India with a heel problem, is due to link up with the England squad ahead of the final two one-day internationals, but is considered unlikely to play either of those matches.