Dive Brief:

• Under Armour's good luck keeps going: It announced Tuesday it has signed tennis pro Andy Murray to a four-year agreement. 
• The sports clothing brand will be replacing Adidas as Murray's main clothing sponsor. 
• The sixth-ranked player will be joining other Under Armour endorsers former Olympic downhill champion Lindsey Vonn, tennis player Sloane Stephens, and golfer Jordan Spieth. 

Dive Insight: 

As Under Armour continues on its marketing gold streak, the move to bring on Murray was meant to help Under Armour expand its diversity in sports sponsors. It was originally designed for football players, but has since grown to include a wide range of sports. CEO Kevin Plank has stated his mission is to topple Nike to become the world's leading sports retail brand, and by signing sports icons like Murray and Vonn as endorsers, it looks like the brand could be well on its way to accomplishing that goal.