The Croatian third seed began the day two sets up but 4-3 down on Pella's serve in the third, following Wednesday evening's halt for rain and found his opponent very much up for the fight.
A summary of Friday's play at Wimbledon.
Serena Williams and Naomi Osaka advanced to the Rogers Cup quarter-finals on Thursday to set up their first meeting since the American's infamous row with an umpire overshadowed last year's US Open final.
They definitely need a ramp of their own.
Bhambri, ranked 200th, recovered from a set down and registered what turned to be an emphatic 6-7, 6-3, 6-1 win over Pella in a match that lasted for two hours and 10 minutes.
Dominic Thiem defeated qualifier Facundo Bagnis of Argentina 6-4, 7-5 in the first round of the Plava Laguna Croatia Open Umag
The United States Tennis Association said on Tuesday that a non-player has tested positive for the virus within the controlled environment that will host the Western & Southern Open and the US Open in New York.
Images from the men's singles quarter-finals at Wimbledon on Wednesday.
Images from Day 3 of the Wimbledon tennis championships played in London, on Wednesday.
Roger Federer was one win away from reclaiming the world number one ranking after he reached the semi-finals of the Stuttgart Open with a 6-4, 6-4 win over Argentina's Guido Pella on Friday.
Serena Williams faces her first seeded opponent at the French Open on Thursday and will hope to use her booming serve to beat Australian Ashleigh Barty in the second round.
India's Yuki Bhambri produced one of the biggest wins of his career as he shocked World No. 22 Gael Monfils in the second round of the Citi Open.
The aura Rafael Nadal usually carries on court may take a while to return when the Spaniard finally begins his comeback in Chile this week, according to world number three Andy Murray.
Summary of sports events and persons who made news on Monday
Nick Kyrgios has likened Novak Djokovic to NBA player LeBron James in his influence both on and off the court but says he had a duty to call out the world number one when he "lost his way" during the COVID-19 pandemic.
Juan Martin del Potro's comeback trail will collide with Roger Federer's after the Argentine won his opening Miami Open match against compatriot Guido Pella on Wednesday.
Gauff vows to be more aggressive in Osaka showdown
In the women's draw, Angelique Kerber was knocked out in a 6-3, 6-1 defeat to Czech Katerina Siniakova while Coco Gauf won her first ever match on clay.
World number one Novak Djokovic's French Open preparations were dealt with a blow as he suffered a 6-3, 4-6, 6-2 defeat by Russian Daniil Medvedev in the Monte Carlo Masters quarter-finals on Friday.
Swati Kalsi's collection was an ode to the traditional Sujani embroidery and Priyanka Ella Lorena Lama's USP was minimal measurements and stitching involved.
Top-seeded world number ones Serena Williams and Novak Djokovic help launch the US Open tennis championships on Monday's opening day of the year's final Grand Slam.
Indian Davis Cupper Prajnesh Gunnewaran, on Wednesday, earned the biggest win of his career by stunning world number 23 Denis Shapovalov in the opening round of the ATP Mercedes Cup in Stuttgart.
Andy Murray is ready for "one more big push" this week as he tries to steer defending champions Britain into the Davis Cup final.
IMAGES from the matches played on Day 4 of the Wimbledon Lawn Tennis Championships at All England Lawn Tennis and Croquet Club on Thursday
Images from the fifth day of the French Open on Wednesday.
The unseeded Indo-Canadian pair defeated their fancied rivals 6-3, 3-6, 10-5 in a round of 16 tie of the ATP Masters 1000 event.
Drained Medvedev pulls out of home tournament in Moscow
Marin Cilic sent Croatia into the Davis Cup final with a 6-3, 6-2, 7-5 victory against Richard Gasquet on Sunday that gave the hosts a 3-1 win over France.
A furious Djokovic went on to smash his racket three times on the court and was met with a chorus of boos from the spectators.
Canada beat USA to enter quarters, Argentina overpower Chile in opening tie
Both won in style on Sunday, with Spanish fifth seed Nadal pouncing on Guido Pella's serve to break the Argentine five times en route to a 6-3, 6-2 victory in sizzling afternoon heat on the stadium hard court.
Andy Murray battled past Romanian qualifier Marius Copil 6-3, 6-7(7), 6-4 at the European Open in Antwerp on Friday to reach his first singles semi-final in two years.
Yuki Bhambri went down fighting while Ramkumar Ramanathan suffered a tame defeat as the two Indians bowed out of the French Open Qualifiers, in Paris, on Monday.
Murray, playing in his first Davis Cup tie since 2016 and only five months after returning to the sport following career-saving hip surgery, clawed out a 6-7(7), 6-4, 7-6(5) victory
Novak Djokovic kicked off his season in style with a 7-5, 7-5 win over Canadian talent Denis Shapovalov on his favourite Rod Laver Arena court on Tuesday before returning to lead Serbia to a doubles victory that sealed their ATP Cup opener 2-1.
Serena Williams recovered from a set down to beat Australian Ashleigh Barty 3-6, 6-3, 6-4 and book a place in the third round.
Venus Williams said she was 'overjoyed' that Wimbledon organisers gave women the spotlight on the tournament's main showcourts on Wednesday.
Rafael Nadal overcame a temporary blip on his way to victory at the ATP Cup on Saturday
The actress was the cynosure of all eyes at Elle Graduates 2017.
Order of play on the main show courts at the French Open.