The top seed was leading 6-4, 2-5 against Michel Kratochvil before heavy rain suspended play at the RCA Tennis Championships.
Wimbledon's favourite son Roger Federer swapped his usual tennis whites for a dark suit and tie and was given a rousing standing ovation as he joined a number of Wimbledon champions dating back to the 1960s for Centre Court's centenary celebrations.
They play Daniel Nestor of Canada and Lina Krasnoroutskaya of Russia for a berth in the quarter-finals.
The American beat Lleyton Hewitt while the Frenchman overcame South Korean qualifier Lee Hyung-taik in the semi-finals.
Russians scoffed at Wimbledon's efforts to keep their compatriots out of the tournament after Moscow-born Elena Rybakina became the first player representing Kazakhstan to reach a Grand Slam final.
Former Wimbledon runner-up Eugenie Bouchard successfully negotiated the qualifying draw on Thursday, beating Colombian Mariana Duque-Marino 6-3, 6-2 to secure a spot in next week's main draw.
He beat Sargis Sargsian of Armenia 6-4 6-4 in the quarterfinals. Defending champ Guillermo Canas lost to Karol Kucera 6-1 7-5.
He beat Sargis Sargsian of Armenia 6-4 6-4 in the quarterfinals. Defending champ Guillermo Canas lost to Karol Kucera 6-1 7-5.
India's leading juniors posted contrasting semi-final victories in the Asian junior tennis championships.
Pendulum swings towards tighter measures against transgender athletes
Ankita Bhambri had an easy outing as her opponent Shikha Uberoi of USA, retired due to a back spasm in the ITF Women's Tennis Championship.
Grand Slam champions Daniil Medvedev from Russia and Belarusian Victoria Azarenka will not be able to participate in the June 27-July 10 tournament.
Serena returned from a maternity break to lose 6-2, 3-6, 10-5 to the 20-year-old Latvian.
Former world number one Novak Djokovic's preparation for next month's Australian Open suffered a blow after he pulled out of the season-opening exhibition event in Abu Dhabi on Friday due to pain in his right elbow.
Indian women thrashed Spain 3-0 to win a promotion to the first division of the next edition of World Team Table Tennis championship.
The Indian ace was beaten by Dmitry Mazur of Uzbekistan in the second leg of the ITF tournament.\n\n
However, Sunil Kumar Sipaeya could not make the grade in the ITF tournament, as he crashed out in the quarter-finals.
Sunil Kumar Sipaeya beat Somdev Dev Varman while Vishal Uppal got the better of Vijay Kannan in the ITF Futures tennis championship.
The Spaniard beat Thailand's Paradorn Srichaphan 6-4, 3-6, 7-5 to claim the title.
The Japanese battled from a set down to beat Russia's Nadia Petrova 1-6, 6-1, 6-4.
The defending champion beat Russian Igor Andreev in straight sets at the Tata Open tennis championship.
He beat compatriot Harsh Mankad 6-3, 6-4 at the Tata Open Tennis Championship in Chennai.
The Asian number one junior player benefitted from Leander Paes's injury who withdrew from the event.
Kinshuk Sharma will be Gladwin's opponent in the U-16 final while his statemate Vijayant Malik will play the Maharashtra boy in the U-14 summit clash.
The giant-killing youngster was beaten in straight sets in the men's singles final in the National Tennis Championships.\n\n
The 17-year-old beat top seed Vinod Sridhar in the semis in the National tennis championships. He also entered the final in the boys' singles and men's doubles.\n\n
The top two seeds were beaten by Chen-Huan Yi of Chinese Taipei and Arun Prakash Rajagopalan respectively in the semi-finals of the Asian junior tennis championships.
\n\nThe third seeded Taipei player beat Tushar Liberhan to join Karan Rastogi, Somdev Verman and Arun Prakash in the semis in the Asian Junior tennis championships.
The fourth seed was taken the full distance by Rupesh Roy in the boys' singles in the Asian Junior tennis championships.\n\n
The fourth seed was beaten by Liu Wang-Ting of China in the first round in the Asian Junior tennis championships.
The top seeded Indian beat compatriot Lalit Mann to set up a meeting with Shahzad Khan in the Pakistan ITF event.
The fourth seeded Indian beat big-serving Phillip Oswald of Austria in the pre-quarter-finals in Osaka Mayor's Cup.
In the doubles, Sunil Kumar Sipaeya of India and Anton Kokurin of Uzbekistan lost to top seeds Alexey Kedriouk of Kazakhstan and Aisam Quereshi of Pakistan.
Harsh Mankad, the fifth seed defeated Seung Hoon Ho of Korea 6-1, 6-2.
Nandita Saha and Sourav Chakraborty went down tamely in the quarter-finals.
Chinese Taipei pulled of an upset, beating China in the boys' semi-finals in the Asian Jr TT championships.
The Indo-Belarusian pair was given a scare by Anthony Dupuis of France and Lee Hung-taik of South Korea at the US Open.
The duo will take on Dominik Hrbaty of Slovakia and Andre Sa of Brazil in the first round.
The fifth seeded Indo-American pair defeated Spain's Alex Lopez Moron and Rossana Neffa-De Los Rios of Parma 6-0 6-1 in the second round.
The top seed in the ITF Satellite tournament was beaten by Takeshi Itho.
