Saturday is a big night in the boxing world, with undisputed and unified title fights all night long. The action kicks off with a map of New York’s Madison Square Garden where Katie Taylor will defend her four world championships against Amanda Serrano in the biggest fight in women’s boxing history (7:30 p.m. ET, DAZN — Subscribe now). Things come to a head in Las Vegas, where WBO junior lightweight champion Shakur Stevenson takes on WBC champion Oscar Valdez in a unification bout (10 p.m. ET, ESPN).

Taylor will make the sixth defense of her undisputed status when she meets Serrano, who is a two-belt champion at featherweight. The highly anticipated bout is the first time two female boxers have headlined an MSG card.

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Stevenson is a rising star, seen by many as a future pound-for-pound elite talent. In Valdez, he faces a fighter with a bulldog mentality who has no problem getting into a war, setting up an old-school showdown between technique and courage.

CBS Sports will be with you the whole way Saturday for both events, so be sure to tune in for live results and highlights below.

Results, highlights

• Shakur Stevenson (c) vs. Oscar Valdez (c), WBO and WBC junior lightweight championships
• Katie Taylor (c) vs. Amanda Serrano, undisputed lightweight championship
• Keyshawn Davis vs. Esteban Sanchez, lightweights
• Nico Ali Walsh vs. Alejandro Ibarra, middleweights
• Liam Smith vs. Jessie Vargas, junior middleweights
• Franchon Crews-Dezurn (c) def. Elin Cederroos via unanimous decision (99-91, 99-91, 97-93)