Originally Posted by Mitch Bridge
Spend a semester at an academy and study Spanish on-line and/or with a tutor. Raise you game up a couple of notches, become bilingual and play as many matches as possible.
IMO it's virtually impossible to become "bilingual," and difficult to become even reasonably fluent, by studying a language online or with a tutor.
Your plan might be the best for OP's tennis game but it wouldn't do much for his language skills. It's a question of priorities I guess.