Alex Rodriguez 'sends secret message' to ex Jennifer Lopez as he poses with daughters. [Courtesy]

Alex Rodriguez sent a 'secret message' to his ex Jennifer Lopez by posing for a family photo with his daughters.

The baseball player was having dinner with his daughters, Natasha and Ella, at home but their dining table was looking a little empty.

While he and his daughters had the candid photo taken, three empty plates can be seen set up on the other end of the table.

Possibly a space for J-Lo and her two children, Max and Emme?

"Din din with my girls! #DaddyDinnerDate" he captioned the family post.

They looked like they had enough dinner - which included barbecued skewers, asparagus, salad, rice and more - for three more people.

A-Rod's 16-year-old daughter Natasha was texting on her phone while Ella was looking at her father.

His sweet family photo comes after it was reported the father was shocked and saddened by the news J-Lo and Ben Affleck could be rekindling their romance.

J-Lo and former fiancé Ben sparked romance reunion rumours after they spent the weekend together.

According to TMZ, the Batman actor and the Jenny from the Block singer were at the Big Sky Resort in Montana, an area close to Yellowstone National Park.

J-Lo and Ben Affleck could be rekindling their romance. [Courtesy]

Fans went into overdrive after hearing the rumours that they'd reunited 17 years after their split.

Sources claimed the former baseball player is "very shocked" that the couple once dubbed 'Bennifer' had been getting close once again.

The source said: "A-Rod is shocked that J-Lo has moved on. He truly thought they would be able to make it work and reconnect.

"He has been reaching out to J-Lo trying to meet with her and she has been very short with him."