Murray the favourite with injuries to top rivals?
NOVAK Djokovic and Rafael Nadal once again make another bid for glory in the US Open which got under way yesterday.
But defending champion Djokovic and fellow two-time winner Nadal come into the season's final Grand Slam with injury concerns.
World number one Djokovic, the 2011 and 2015 champion, admits he is "not 100 per cent" after suffering a wrist injury on the eve of the Olympic Games where he was a shock first-round loser.
The 29-year-old has also said "personal problems" contributed to his third-round exit at Wimbledon, which ended his hopes of going on to capture the first calendar Grand Slam since 1969.
Nadal, meanwhile, is also battling the effects of a left wrist problem which forced a mid-tournament withdrawal from the French Open and sidelined him until the Olympics where he was a gold medal winner in the men's doubles.
The injury concerns, combined with the absence for the first time since 1999 of five-time winner Roger Federer, have put 2012 champion Andy Murray in the position of favourite.
Djokovic starts his bid for a third major of 2016, and 13th of his career, against Polish giant Jerzy Janowicz, who was a Wimbledon semi-finalist in 2013.
A serious knee injury has limited Janowicz to just six matches all year and seen his world ranking collapse all the way to 228.
Nadal, the 2010 and 2013 champion in New York, tackles Denis Istomin of Uzbekistan.
The Spaniard has a 4-0 career record over world number 107 Istomin, including a win over the Russian-born player at the 2010 US Open.
Nadal closes the daytime session while Djokovic starts the evening entertainment.
In between, the tournament will stage its opening ceremony with Phil Collins, making his first concert appearance in six years, headlining the occasion by reprising his In The Air Tonight hit.