Adebayor was a big hit on loan from Manchester City last season, but after signing a permanent deal at White Hart Lane in the summer has failed to break back in to the starting XI this term thanks to the sharp form of Jermain Defoe.
The Togolese striker has not started a game for the Londoners under Andre Villas-Boas and there have been reports that he is disappointed at playing second fiddle to Defoe, who has scored seven goals for club and country this season.
Villas-Boas has cited back and hamstring injuries as part of the reason why Adebayor has not played as much this term, and he may miss out on Wednesday's Capital One Cup clash at Norwich as he is struggling with a stomach bug.
Freund insists the powerful hitman still has a big role to play for the team this year, however.
"Adebayor is sick today. We will have a look tomorrow (to see if he is fit for Norwich)," Tottenham's assistant head coach said.
"If you're not playing and you're injured then of course you are not happy.
"He's really sick but hopefully he will be back in time. He is one of the best strikers in the Premier League. We are happy to have him back here.
"We need every Tottenham Hotspur player. If Andre wants to rotate or change the position up front, it's good to have every player fit."
Bale has challenged his team-mates to build on the momentum gained from Sunday's win by picking up back-to-back victories against Norwich and Wigan.
"We're enjoying our football now and we're on a good run so it is good times, but we just need to keep our feet on the ground and move forward," said the Welshman.