Complex sentence: He also has drawn Comparisons to Floyd Mayweather, Jr. Benavidez signed a multi-year promotional deal with Bob Arum's Top Rank, which was remarkable for someone without Olympic experience or a single pro bout under his belt.
Split into simpler sentences: He also has drawn Comparisons to Floyd Mayweather, Jr. Benavidez signed a multi-year promotional deal with Bob Arum's Top Rank. Which was remarkable for someone without Olympic experience or a single pro bout under his belt.