Wimbledon tennis finals are an example of the 'winner takes all' model people love to watch. Collaboration on the other hand is a shared experience.
What's evident with the stars of SW19 is that there's a whole team of back-room peeps supporting the talent.
Collaboration works best when roles and responsilities are clearly defined and there aren't two people competing for a place in the sun. e.g. Lennon & McCartney - Brown & Blair. Viva Nadal's team