He spent the second half of last season on loan at Tottenham.
"I just need football, to play games and get as many minutes under my belt as quickly as possible," the Iceland international told BBC Radio Stoke.
Gudjohnsen had been training alone and admits that he could not replicate the intensity of training within a squad.
"You can only do so much on your own," he added.
"I have done a lot of individual training so I don't just walk in the door completely out of shape.
"It's more just getting into the day to day football training again which I need and playing games to reach my best level again."
Gudjohnsen has the international break to re-acclimatise to English football, with Stoke's next game being against Aston Villa on 13 September.
Source: BBC Sport
Source: BBC Sport