Top 10 stories of 2021Second of a two-part series5. Boxers deliver big punchesA crunching left hook to his opponent’s body was all Nonito Donaire Jr. needed to remind the boxing world that he’s here to stay. At 39, fit and strong, the “Filipino Flash” once again proved that he’s a star in the 118-pound class. His fourth-round stoppage of compatriot Raymart Gaballo in Carson City last Dec. 11 made sure the WBC bantamweight crown remained in Donaire’s hands. Last May, he won the title with a similar fourth-round knockout of Frenchman Nordine Oubaali, also in California. Now, he’s hoping and pray…