Factbox on Serbia's Novak Djokovic and Great Britain's Andy Murray who will contest his sixth Australian Open men's singles final on Sunday.
Images from matches played on Day 4 at the US Open at the Flushing Meadows in New York on Thursday.
Federer, who skipped the entire clay court season after winning the Australian Open and claiming titles at Indian Wells and Miami this year, will next play defending champion Florian Mayer who beat Frenchman Lucas Pouille in three sets.
Cilic's booming serve lacked its usual accuracy and Germany's Kohlschreiber was able to control long rallies, pushing the towering Croatian around the court with pinpoint groundstrokes en route to a quick victory.
IMAGES from the matches played at the PNB Paribas Open at Indian Wells on Sunday
Nadal, who got a first-round bye, defeated Richard Gasquet 6-3, 6-4 to advance.
A day after celebrating his 36th birthday, Federer played the aggressive game that has propelled him to five titles, including two grand slams, this year, attacking the net and rocketing second serves.
Thursday's match was just Venus Williams's seventh of the year and first since January's Australian Open, where she fell to Simona Halep in the round of 32.
Summary of sports events and persons who made news on Wednesday
International Ski Federation (FIS) president Gian-Franco Kasper has warned FIFA against holding the 2022 World Cup in Qatar at the same time as the Winter Olympic Games.
India's Leander Paes and his German partner Alexander Zverev went down to the Spanish duo of Feliciano Lopez and Marc Lopez in a men's doubles first round match to bow out of the Cincinnati Open.
Images from Day 3 of the Australian Open in Melbourne on Wednesday
A summary of the action on Day 3 at the US Open.
Summary of sports events and persons who made news on Friday
List of men's singles champions at Wimbledon:
Images from Day 2 of the Australian Open in Melbourne on Tuesday
The ATP issued the latest men's tennis rankings on Monday and the top 10 list remains unchanged with Serbian tennis ace Novak Djokovic still leading the rankings.
'If one thing seemed clear in this week of very uneven tennis in Melbourne though, the much celebrated golden age of tennis may be over.'
A summary of sports events and persons who made news on Friday
Summary of sports events and persons who made news on Tuesday
US Open champion Martin Kaymer sank an eight-foot birdie putt at the first extra hole to beat Bubba Watson in the four-man PGA Grand Slam of Golf in Bermuda on Wednesday.
Soccer's governing body FIFA has agreed to ban the third-party ownership (TPO) of players, its president Sepp Blatter said on Friday, seven years after first promising to outlaw the practice.
Croatian wunderkind Borna Coric offered emphatic proof of his potential when he crushed Rafael Nadal in the Swiss Indoor tournament on Friday before local hero Roger Federer cruised into the last four.
Rafael Nadal is recovering satisfactorily from appendicitis and will continue a course of antibiotics in a bid to be fit for the remainder of the 2014 season, the World No 2's spokesman said on Thursday.
American swimmer Michael Phelps, the most decorated Olympian of all time, was suspended for six months by USA Swimming on Monday following his recent arrest on a drunken driving charge.
'Djokovic is playing some of the best tennis in the history of the game.'