LONDON — Right-hander Deivi Garcia, who has dominated at Single-A and Double-A, is the only Yankee to be selected to the All-Star Futures Game, to be played July 7 at Cleveland.

The 20-year-old, who is 5-foot-9 and weighs 163 pounds, is 4-4 with a 2.78 ERA in a combined 13 games for Tampa and Trenton. In 64 ²/₃ innings, Garcia has struck out 109 and walked just 30.

An NL talent evaluator this past week called Garcia the Yankees’ best overall prospect.

Each Yankee and Red Sox player received $60,000 for making the trip to London, but that wasn’t the only perk. Many took advantage of seeing London’s sights on Thursday and before Friday’s workout.

“Seeing Harry Potter’s [studio],’’ said CC Sabathia of his favorite activity.

Asked if he was disappointed not to be facing the Red Sox in London, Sabathia said, “No, I am enjoying the trip.’’

Sabathia also took a picture with soccer star Rahim Sterling of the Manchester City squad, who is one of the top scorers in the world.

Aaron Boone said James Paxton will start Tuesday night against the Mets at Citi Field in the third of four Subway Series games. After that, the manager wasn’t sure how he would use Domingo German and J.A. Happ.

“It will be a combination of Happ and German on Wednesday and Thursday,’’ Boone said Friday before this weekend’s London Series against the Red Sox.

German made a minor league rehab start Thursday for Triple-A Scranton/Wilkes-Barre and appears to be over the right hip problem that landed him on the injured list on June 9.

Masahiro Tanaka, who starts for the Yankees on Saturday, threw several pitches off the mound on Friday to get the feel of a hill no big league pitcher has worked off.

— Additional reporting by Ken Davidoff