Gary Hooper admits he is still playing catch up on his Owls teammates, despite recovering from an ankle injury.
The striker, who netted 13 times last season, was forced to sit-out Wednesday's two friendly victories over Chesterfield and Portuguese champions Benfica due to the knock.
But Hooper has shrugged off the problem and will be available for selection for tomorrow's warm-up match with CD Nacional. The Owls also face Portimonense in a training exercise on Monday.
Speaking exclusively to The Star at the Owls' training base in the Algarve, Hooper said: "It was frustrating to get the injury.
"I picked it up after the Alfreton game and I've been out since then. It was only a little thing.
"I'm just trying to get my fitness back now. Hopefully I can play a part in both games coming up and get back to the level the boys are at."
Hooper expects Nacional to be another step up for the Owls as they continue their preparations ahead of the new Championship campaign, which begins in less than a fortnight.
The 28-year-old said: "Nacional are a big team so it will be a tough game.
"I thought the boys did very well against Benfica. It was a good result and hopefully we can take that into the Nacional game."
Wednesday's players have been put through their paces in Portugal, with Carvalhal's squad training twice a day in sweltering conditions.
"It's a tough heat to play in," conceded Hooper. "You get a proper sweat on.
"We haven't trained for too long but the sessions have been very sharp and intense.
"It has been a tough training camp but these trips are important for team bonding and getting everybody together."