Tottenham striker Heung-min Son says preseason will step up next week.

Spurs have a trip to Chelsea (Wednesday) and a home derby against Arsenal next Sunday.

“It's still pre-season, some of the guys still aren't here (after international duty this summer), but we will try to be positive, try to get our fitness, our sharpness, this is most important for pre-season," Son told the club's website.

“We're working really hard to be fit for the start of the season, not fit for pre-season, so now big games are coming against Chelsea and Arsenal, and we look forward to playing against them, but obviously we want to push as hard as possible for the start of the season."

Son is happy playing in front of fans again.

“We miss them, we play for them. Football is about all fans, not just players. I'm grateful fans are back in the stadium. I couldn't wait. I really enjoyed it today and at Colchester, I can't wait to play in our beautiful stadium again."