Laila Ali on Her Father's "Evil Streak"

Season 5 Episode 520
Laila Ali, the daughter of legendary boxer Muhammad Ali, is a record-setting fighter in her own right. In 2007, after 24 bouts, Laila retired as the undefeated Super Middleweight Champion with 21 knockouts. In the ring, she says, she wasn't the friendliest opponent, an attitude she says she shared with her father.

Here, Laila reveals how her father's "evil streak" influenced her boxing style. Plus, she discusses what she's learned from watching her father battle Parkinson's disease for the last 31 years.