Scheduling dangers putting doubt in Murray's mind.
Murray eager to get back on Wimbledon courts.
Nadal finds ally in great rival.
Spaniard calls for uniformity.
British number one discusses knee injury.
Edmund looking forward to seeing how it pans out.
Spaniard ready to ramp up Wimbledon prep.
Caution advised by Spaniard.
British star eager to continue comeback.
Murray looks to future.