They last met in a Grand Slam final in 2011.
Federer has not played a Grand Slam since Wimbledon 2016.
Farah has received two Therapeutic Use Exemptions (TUEs) in the past eight years.
The "Fawlty Towers" actor weighed in after the resignation of Raymond Moore.
Raymond Moore said that women should 'bow down' to Federer and Nadal..
The Spaniard eventually progressed to the quarter-finals.
Murray's father-in-law Nigel Sears collapsed during the British No. 1's round of 16 match.
The world No. 2 says the scale of the alleged match-fixing offenses has surprised him.
The world No. 2 faces a potentially tricky test against the German teen in the first round.