More than two thousand tennis balls that would have otherwise sat in storage at the Queensland Tennis Centre have been donated to RSPCA Queensland to be happily chewed to death.

The Rod Laver Junior Championships - Australia's biggest junior tournament - is held at the Tennyson centre each year and attracts 637 players from 13 countries.

RSPCA dog Nancy with tennis players Kaito Nelson 11 (L) and Jonah Gethin 12. Credit:Robert Shakespeare

Tennis Queensland tournaments manager Travis Dragojlo said the tournament goes through roughly 10,000 tennis balls each year that could not be reused due to regulations.

"Any matches will get two to three new balls per match and then at the end of the match the kids will come and report their score and then the next match they play they will get new balls as well," he said.