I found some more graphic designs for Guga Kuerten. Not sure if they’re for t-shirts or ads. Either way, they are a perfect representation of the company’s laid back, surfer/skater attitude. These first three are from TavinhoCosta. (source)
This is a great take on a company crest.
On the left, using the famous Japanese woodblock print by Hokusai.
And a literal mixture of Guga Kuerten’s presence in tennis and skateboarding.
The last two are from this site.