It’s two new players in as many days for the Johnnies.

Monday night, it was coveted Syracuse transfer Donnie Freeman. Tuesday, 7-foot-1 Serbian big man Lazar Stojkovic committed to Rick Pitino and Co., his agent Nikola Knezevic told The Post.

The 18-year-old European big man is the third international addition for St. John’s, following British point guard Quinn Ellis and Montenegrin wing Djordije Jovanovic. He was on campus on Monday and was given a tour of the Garden on Tuesday.

“They needed a big who was going to stay there for a long time. They were looking for someone who can develop and mold him into the way Coach Pitino plays,” Knezevic said. “That was exactly what my business partner, Stevan Petrovic, and I were looking for with Lazar, because he’s still young, will need time to develop and we were looking for a long-term place where the development process is a big part of their culture. Where he is going to be able to get some minutes also the first year and get adjusted to the speed of the game, physicality, athleticism, but also at the time develop and improve every single day from a mental and physical perspective.”