Part III in a series analyzing the New York Knicks.

Knicks swingman Reggie Bullock has faced a heap of turbulence since last summer.

First, Bullock learned he needed spinal fusion surgery in July after signing with the Knicks as a free agent. The neck procedure cost him millions on his contract and the season’s first 2 ½ months.

During his rehab in October, his sister, Keiosha Moore, was murdered in Baltimore. It was the second sister he had lost to Baltimore’s rough-and-tumble streets in five years.

Now Bullock can’t even get back to Baltimore during the season’s indefinite suspension because of coronavirus.

After signing with the Knicks, Bullock took a home in New Rochelle — one of the nation’s first coronavirus hot spots. When the Knicks returned from Atlanta March 12, Bullock wasn’t allowed out. He was stuck with his girlfriend in a New Rochelle hotel, spending his 29th birthday there this week.

The only thing that went well for Bullock was his time on the court. The 6-foot-6 North Carolina product made his Knicks debut Jan. 1 without a training camp or preseason game, but with rainbow-dyed hair.

Bullock wore the rainbows, an LGBT symbol, to honor his transgender sister, 26-year-old Mia Henderson, who was stabbed to death in a West Baltimore alley in 2014. Bullock has become among the most diligent LGBT supporters in pro sports.

Interim coach Mike Miller fell in love with Bullock’s basketball IQ, dogged defense and reliable 3-point shot. He was a mainstay in the rotation — even as fans/media begged for Miller to give more minutes to the young players such as Kevin Knox.

Though his 3-point shooting waned in the final three weeks, Bullock’s defense never did. Miller often placed him against the opponent’s top wing scorer.

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With his contract reworked after the surgery, Bullock’s second year is a team option at $4.2 million.

Even if waived at the June 28 trigger date, Bullock will still count on the cap for a $1 million guarantee.

With a plethora of open roster spots next season because of their glut of one-year free-agent signings, Bullock’s modest option year is likely to be picked up, according to an NBA source.

Bullock, whose 3-point shooting fell to 33.3 percent because of a late-season swoon, was a strong influence on some of the younger players, including rookie RJ Barrett. Bullock, who averaged 8.1 points, was in Barrett’s ear about picking up his defense.

Bullock thrives in a spaced-out offense — which the Knicks want to become. The franchise is desperate for long-range shooters and solid veteran influences next season.

“He’s still a streak shooter and isn’t much of a passer or handler,’’ one NBA scout said. “We’re talking about an average player.’’

Nevertheless, Bullock weaved an uplifting journey to make it back this season after another sibling’s murder.

Nobody knew what to expect after he wrote on social media on Oct. 31: “I never felt so broken in my life. My 2 queens. S–t won’t ever be the same. I failed as a brother to protect you from the harm of these streets. I failed twice to be the true brothers’ keeper.’’