The on-loan Manchester City striker played his part in Spurs finishing fourth this term.
“Our target was to finish in the top four and today we are fourth but while I will not be harsh, we could have done better,” he told the London Evening Standard. “We played some great football but there was a point where a bit of tiredness kicked in, and there were injuries to important players, like Aaron Lennon.
“But I can still say we were successful. We finished above Chelsea and Liverpool and we were very close to finishing ahead of Arsenal, and for the first time in many years, we can see that Spurs are closing the gap on Arsenal.
“I don’t know yet where I will be next season but the target has to be to make progress every year. Tottenham were fifth the season before this one, fourth this season, so it is time to try for the top three next year.
“I believe Tottenham are going to become a bigger club, one of the main contenders, but to do that, they have to be in the Champions League. When you are in that competition, you can afford to buy some players and it helps the club. Hopefully Spurs will be there.”