The Blades had 10 players away on international duty over the last fortnight, but all have returned to Bramall Lane fit and healthy ahead of Saturday’s return to Championship action at Derby County.
Those included Republic of Ireland duo Enda Stevens and John Egan, Wales pair Kieron Freeman and Ben Woodburn, Northern Ireland’s Ollie Norwood, and England Under-21 goalkeeper Dean Henderson.
“All the players have reported back fit this morning, so that’s good news,” said Blades boss Chris Wilder.
“We are very proud of our players going away for international football, it’s a real feather in their cap and the football club.
“But the biggest thing every manager will be wary of is they come back and have not picked up a knock. Thankfully none of our guys have, so we are at full strength.”
International call-ups left Wilder with a depleted squad of players to work with, but the Blades manager says training has not eased off over the international break.
He said: “The players here worked hard. They had a couple of days off over the weekend.
“They worked extremely hard, we have to keep the hammer down with those players, get the miles into them.
“It’s a depleted group, with the boys being away, but they worked extremely hard because they need to keep the standards high.”