Spaniard ranked fourth in world and heading in wrong direction as things still not going to plan this season.
All England Club lifts tennis major prize pool to $53m with the singles champions to take home $3.8m each.
Kiwi tennis player can't find finishing form in the final of an ATP event, losing in a third set tie-breaker.
World No 5 made to fight hard in defence of his title, eventually beating Spanish finalist 6-4 6-4.
Security stepped up at Stuttgart WTA tournament after world No 3 receives a death threat.