Pablo Prigioni has done this before — backing up Jose Calderon at point guard. The Argentine and Spaniard were teammates in the Spanish League years ago with Tau Ceramica de Vitoria and now they have been reunited in Phil Jackson’s all-international point guard tandem with the Knicks.

Prigioni is delighted to have Calderon — the Knicks’ biggest offseason acquisition. And he’s just as thrilled Carmelo Anthony re-signed on the dotted line.

Prigioni said his wife and Calderon’s wife have remained friends.

“I’m very happy to have the opportunity to play with Jose one more time,” Prigioni told The Post on Saturday. “We played together in Spain and we did really well. He is a great player and very good professional, a great 3-point shooting guy. He can run the team and read the game very well and is a good defender. He has all that a good point guard must have.”

But Prigioni and Calderon, who both have a pass-first mentality, could be on opposite sides in late August, early September.

Prigioni began training camp two days ago for Team Argentina and Calderon for Spain, which is starting to loom as a favorite of the FIBA World Championship following Kevin Love’s withdrawal Saturday from Team USA because of his uncertain future.

With Anthony sitting this one out, the Knicks have no player on Team USA (Tim Hardaway Jr. is on the practice team in Las Vegas training camp). But Prigioni is excited Anthony rejoined his team in New York.

“When I saw Melo re-sign, the first thing I did was send him a message saying that I was so happy to have a chance to still play with him,” Prigioni said. “And I told him that I’m sure we will play much better next season.”

Though Prigioni’s advanced analytics numbers stood out (the club’s efficiency was far better when he was on the floor), the Knicks sputtered to a nightmarish 37-45 record in a playoff-less year in Prigioni’s second season in New York. A big improvement, Prigioni believes, is in store.