Tonight at 10:30 p.m. from New York City, the world's top bantamweight faces the world's top super flyweight at the WaMu Theater at Madison Square Garden when Nonito Donaire takes on Omar Narvaez.

Donaire (26-1, 18 KO) is coming back from some promotional drama with Top Rank, the company with whom he re-signed after an aborted contract with Golden Boy Promotions following his February TKO-2 win over Fernando Montiel. The dynamic Filipino is the rare fighter below the featherweight division with HBO support, as the network has been eager to get him back in the mix since that last win, which was his HBO debut.

Argentina's Narvaez (35-0-2, 19 KO) was a long-running titlist at flyweight and has made a successful move to super flyweight. Now he targets the biggest fight of his career, his first fight on American soil. The 36-year-old "El Huracán" looks tailor-made for Donaire, a big bantamweight who will likely make Narvaez, at 5'3", look tiny.

Tonight also features the debut of Pacquiao vs Marquez: 24/7, at 10 p.m.

Andrew Fruman will be handling round-by-round coverage tonight.