NEW YORK — Rose Namajunas made it 2 for 2 against Joanna Jedrzejczyk and defended her 115-pound championship with a unanimous decision victory in the co-main event of UFC 223 on Saturday night.

Namajunas (9-3) defeated Jedrzejczyk in the first round of their first match in November to win the strawweight championship. The 25-year-old Namajunas had to go the five-round distance at Barclays Center to win 49-46 on all three scorecards.

Namajunas was a passenger on the bus attacked by UFC star Conor McGregor this week inside the loading dock of the arena. The melee — which sent McGregor to court and scrapped three fights on the card — shook up Namajunas.

Jedrzejczyk (14-2) and Namajunas appeared deadlocked through four rounds. Namajunas' lead left leg absorbed so many punishing kicks it turned bright red, but she bloodied Jedrzejczyk with a series of stiff shots to the face. Jedrzejczyk's right eye was about swollen shut in the fifth but she still landed some jabs that kept her hope alive of regaining her championship.

Namajunas took down Jedrzejczyk with 30 seconds left and the crowd roared in the waning moments of a sensational championship fight UFC needed following one the rockiest weeks in the company's 25-year-history.

Jedrzejczyk threw her arm around Namajunas for a hug at the end of the bout.

Khabib Nurmagomedov fights Al Iaquinta in a lightweight title bout in the main event.