Mario Power Tennis (GCN) - Rainbow Cup (Doubles) - Mario and Luigi

Mario Power Tennis (GCN) - Rainbow Cup (Doubles) - Mario and Luigi
Mario and Luigi had their small sibling rivalry during the singles tournaments, and each won a trophy. Now, the heroic plumber brothers have yet to win a doubles trophy to show their strength as brothers as they participate in the first doubles cup of the Star Tournament series, the Rainbow Cup. Along with the Mario brothers, the cup's cast includes some interesting doubles teams, including Shy Guy and Boo, and the recent surprise champions, Wario and Waluigi. Which team will walk away with the Rainbow Cup?