Aging hunting knife salesman Gil Renard (Robert De Niro) is ecstatic when the San Francisco Giants sign on three-time MVP baseball player Bobby Rayburn (Wesley Snipes) for the tidy sum of $40 million dollars. However, Rayburn is not so ecstatic when he learns that his lucky number 11, earned while playing with the Atlanta Braves, is already being used by Giants player Juan Primo (Benicio Del Toro), who is not about to give up the number. On opening day, Rayburn suffers a chest injury when he and Primo collide in the outfield, Rayburn loses his lucky 11 necklace, and his game goes downhill from there, while Primo's game soars. Meanwhile, Gil loses his job, and his ex-wife Ellen (Patti D'Arbanville) files a restraining order against him, keeping him from seeing his son. As Gil falls deeper and deeper into his obsession, he starts believing that Rayburn's slump is due to Primo's refusal to give up the 11, so Gil decides to take things into his own hands and help Rayburn re-find his glory.
Rayburn played center field with the Braves as did Primo with the Giants. When Rayburn was picked up by the Giants, he took over center field, and Primo was re-assigned to left field, as per Rayburn's comment to Primo, 'I hope you enjoy left (field).'