There are fatigue concerns for Liverpool skipper Gerrard and Tottenham's Parker.
Hodgson said on BBC Radio 5 Live: "Scott's 31 and Steven 32, we're not talking about old players.
"Certainly Sweden have players considerably older than our team and I think I heard that we are the third youngest squad in the tournament.
"Age doesn't bother me, obviously when you go into the third game you are going to be concerned for all your players, not just Steven Gerrard and Scott Parker. You're going to be concerned for them all whatever age they are because three games played in Ukraine in heat takes it out of everybody.
"But we have the players I think in the squad to step up to the plate and I'm pretty sure that first of all these players will be wanting to play all the games and they'll be working very hard as they've done after this France game to make certain they recover and are ready to go again."