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LOS ANGELES, CA - JANUARY 16: Singers Rihanna and Matt Kemp outfileder of the Los Angeles Dodgers baseball team attend Cleveland Caveliers and Los Angeles Clippers NBA basketball game at Staples Center on January 16, 2010 in Los Angeles, California. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Kevork Djansezian/Getty Images) *** Local Caption *** Rihanna;Matt Kemp
According to accounts given to US, the long-distance nature of the relationship made it hard for the couple to stay connected.
A rep for Rihanna, who is on vacation with her family outside the U.S., declined to comment.
On Wednesday, People mag also reported news of the split, citing an anonymous source.
Kemp, 26, came into the picture for the 22-year-old "What's My Name?" singer in the wake of her very public breakup with singer Chris Brown. Earlier this year, Rihanna told Elle magazine that the relationship with Kemp "keeps her sane."