![Biggest storylines to watch ahead of Gervonta Davis vs. Isaac Cruz and Devin Haney vs. Joseph Diaz](https://sportshub.cbsistatic.com/i/r/2021/06/27/19bb9786-4913-4db3-868f-1180765bc694/thumbnail/1200x675/c8afde4e7236befe3b981f0695e42c37/gervonta-davis-belt.jpg)
Biggest storylines to watch ahead of Gervonta Davis vs. Isaac Cruz and Devin Haney vs. Joseph Diaz
CBSN
The lightweight division is heating up with many of the top players in action to close 2021
Fresh off a loaded Saturday of dramatic fights that felt like a shot in the arm to the sport's overall viability, boxing is back in a big way this weekend with a pair of must-see main events focused on the talent-rich lightweight division.
Gervonta "Tank" Davis continues his march toward superstardom when he headlines Sunday's Showtime pay-per-view card against late replacement Isaac Cruz in defense of his WBA "regular" title at 135 pounds. One night earlier, unbeaten WBC champion Devin Haney enters what's expected to be a difficult title defense against former 130-pound beltholder Joseph Diaz Jr. on DAZN.
Considering former unified champion Teofimo Lopez Jr.'s upset loss to upstart George Kambosos Jr. last week, there are no shortage of storylines surrounding the division as a whole. Let's take a closer look at what to watch for.