ok, here are some ideas I've had so far and some resources I've found on the net...maybe someone wants to add some??...
http://www.onestopenglish.com/english_g ... ortpre.pdf
Project work: do a bio of a famous sportsperson/your favourite team/your favourite sportsperson
TV sports commentaries: Students write their own commentaries i.e. dub over the original
School survey of favourites to win the medals for each sport, the most medals etc.
Stress in sports names eg. ath'letics
Charades
Group work: Invent a new sport and write the rules