USC’s Pola-Mao will return in ’21

USC safety Isaiah PolaMao said on Twitter that he would return for his senior season. The announcement was expected, but PolaMao’s return is crucial for a defense that lost Talanoa Hufanga, who opted for the NFL after his junior season.

The Trojans also gained a receiver when former Colorado wideout K.D. Nixon announced he would transfer to USC for his final season of eligibility.

But they lost an assistant,