The 40-year-old former pro baseball player was joined on the red carpet by his model girlfriend Hannah Davis, who wore a gorgeous red ensemble.
In case you don’t know Hannah, check out some fun facts about the Sports Illustrated model!
“#SIVegasExperience with my girls! @si_swimsuit @hillarydrezner @haileyclauson 😘👙😘,” she recently tweeted.
FYI: Derek is wearing custom rag & bone. Hannah is wearing a J. Mendel dress, Christian Louboutin shoes, a Kotur clutch, and Marina B jewelry.