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."