Adidas chiefs are upset with Real Madrid star Cristiano Ronaldo.

Ronaldo is a Nike player and struck the winning penalty in the Champions League final shootout on Saturday against Atletico Madrid.

To celebrate, Ronaldo ripped off his adidas-sponsored Real shirt and sprinted away.

Adidas chiefs are furious they've missed out on millions of dollars of free publicity with Ronaldo's celebration being shown around world without his Real top.

Meanwhile, adidas are in talks with Real about an improved kit deal.