Keeping busy in Hamburg

Hey all! I'm new to the expat-blog site, but am excited about joining the expat community! I'll be moving to Hamburg towards the end of August to live with my boyfriend. I'm looking for friends to play tennis, go swimming, jogging, and of course, going out for some drinks! I don't speak German (although I'm hoping to!!) but would love to have some English speaking support once I get acclimated! If anyone is currently living in the city, and knows where some good tennis courts or indoor pools are, let me know and hopefully we can meet up!