Rival- equal: be equal to in quality or ability; "Nothing can rival cotton for durability"; "Your performance doesn't even touch that of your colleagues". Be the rival of, be in competition with; "we are rivaling for first place in the race". The contestant you hope to defeat; "he had respect for his rivals"; "he wanted to know what the competition was doing".
The New York Mets are the Philadelphia Phillies rival by every definition of the word. The fans hate each other, the teams trash talk about the other, the cities are within 100 miles; perfect formula for a bitter rivalry in which every game is fought with maximum effort, intensity, and passion. Grand Pappy Moyer and the Phightin Phils face Ollie Perez and the Metropolitans today at 1:10 for Shea Stadium's final opening day. Tomorrow night the rivalry will take center stage on ESPN2 with Kyle Kendrick versus Mike Pelfrey, and the 3 game set will wrap up Thursday night with Adam Eaton against John Maine. "There are guys in the [Phillies] locker room the other day suggesting there will be a brawl - b-r-a-w-l," Jayson Stark told Philadelphia radio station WPEN at the time. There will be blood!