Brooklyn Nets owner Mikhail Prokhorov has reportedly promised to drop a few rap bars when minority owner/rapper Jay-Z kicks off a series of Barclays Center concerts this fall.

While details are still scarce, Prokhorov has even joked about how much rehearsal time he has dedicated to the upcoming performance(s).

According to Mr. Prokhorov, a reprise is in the works, but this time in downtown Brooklyn, where Jay-Z will open the $1 billion Barclays Center with a series of sold-out concerts this fall. “Yes, I will rap at his concert,” Mr. Prokhorov informed Crain’s via email. “I am in rehearsals now 10 hours a day and plan to demand joint billing.” (Crains New York)

Additional reporting claims the billionaire owner has previously displayed his rapping skills.

Prokhorov is no stranger to rapping. During an appearance on the the Russian TV show Spotlight Paris Hilton earlier this year, MP let a few rhymes loose to show off his skills. “Mr. Jay-Z, this is the first presentation/Of real rap music from Russian Federation,” he rapped. “Mr. Jay-Z, you are not alone/Mikhail Prokhorov on the microphone.” Catchy! And, we’re sure that everyone in attendance at the Jay-Z shows will be thrilled to hear Jay interrupted by hot lines like these. Ha. Anyone want to sell us their tickets now? (Complex)

Last spring, he came to the defense of Nets forward Kris Humphries after getting name-checked on Kanye West‘s “Way Too Cold” record.

West, whose blossoming relationship with Humphries’ ex-wife, Kim Kardashian , has been grabbing headlines, declared his love for the reality star on the track. The song, which leaked April 5, features a cheap shot at Humphries. “Lucky I ain’t have Jay drop him from the team,” West boasts on the tune, inferring that he has enough influence over Nets minority owner and buddy Jay-Z to affect Humphries’ future with the team. According to the Nets’ principal owner, however, West can’t touch Humphries. “Kris has nothing to worry about,” Prokhorov said. “I support my players, and I’m on his side in this epic battle.” Although Hova has gotten a lot of press indicating that he’s an owner of the Nets, his stake in the team is minuscule compared to Prokhorov’s. The Russian businessman, who’s back in town after a losing bid for president in his native country, paid $200 million for 80% of the NBA team in 2010. Jay-Z reportedly purchased a $4.5 million stake in the Nets in 2004. (New York Daily News)

Jay-Z’s publicized concert series is expected to begin in late September.

The 40/40 Club will open its new location at the Barclays Center, the new sports and entertainment venue and home to the Brooklyn Nets. The $1 billion arena will house the 9,000 square-foot restaurant slated to debut on the arena’s opening night when Jay-Z performs in concert on September 28, 2012. “There is no better home for another 40/40 Club location than the new Barclays Center in Brooklyn,” stated Jay-Z. “The 40/40 Club has revolutionized restaurants in a way I anticipate Barclays Center to transform the arena watching experience.” (Inside Hoops)