The couple, who called it quits in August, was photographed spending the New Year's Eve weekend in Paris, People magazine has learned.
Kelly, who was named Esquire magazine's Sexiest Woman Alive in 2010, was a fixture at Yankees games during her romance with Jeter and even participated in an HBO documentary about his 3,000th hit last year. But the pair suddenly split last summer and Minka joined the all-star roster of Jeter's former girlfriends, which includes Mariah Carey, Vanessa Minnillo and Jessica Biel.
A source told the celebrity website, JustJared, the split was amicable, saying, "They remain friends. They still really care for each other."
But season's greetings brought an apparent reunion for Jeter, 37, and Kelly. The Yankees slugger and the former Friday Night Lights actress, 31, joined friends at a boutique hotel on Paris' Left Bank and took in some of the city's hottest tourist attractions on Thursday.
On Friday, the two were also spotted enjoying brunch at the Musée d'Orsay.
Snapshots showed the two together outside the Basilica of the Sacred Heart, posing for a photo on Kelly's iPhone and hugging outside the entrance steps.
"They looked much in love," an spywitness tells People. "They were always very, very close [and] very playful as a couple with each other."
Derek and Minka were first rumored to be back together in October, shortly after the cancellation of Minka's critically-panned Charlie's Angels revival for ABC.
Kelly was last romantically linked to her ex-Angels co-star Ramon Rodriguez.
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