Here’s hoping Andre Agassi has a sense of humor

He has eight Grand Slam titles, a reputation as one of the sporting world’s great philanthropists and more Best of Las Vegas awards than he could count.

We’ll soon find out if Andre Agassi also has a sense of humor.

The native Las Vegan is never mentioned in the mockumentary “7 Days in Hell” (10 p.m. Saturday, HBO), but he clearly serves as an inspiration for Aaron Williams, Andy Samberg’s “bad boy of tennis” character.

We assume Agassi never snorted coke off Wimbledon’s center service line, as Williams does. But there’s just something so unmistakable about Williams’ spiky, blond mullet and denim shorts — part of a failed sponsorship with Jordache that costs the company’s president (Lena Dunham) her job.

Presented as an HBO Sports documentary about the longest match in Wimbledon history — complete with “analysis” from John McEnroe, Chris Evert and Jim Lampley — “7 Days in Hell” lands somewhere between one of Will Ferrell’s sports comedies and a Christopher Guest movie.

As Serena Williams tells it, her father, Richard, pulled “a reverse ‘Blind Side’ ” by adopting Aaron and making him play tennis. And for a while, it worked. On his way to the No. 2 world ranking, her bad boy brother flips the bird during matches and has a marijuana leaf on his shirt where the crocodile or polo player should be.

Then, during championship point at Wimbledon in 1996, he killed a line judge with his serve. “Technically, it wasn’t the impact that killed him,” McEnroe clarifies. “But the impact gave him a heart attack, and that killed him. So, if you ask me if Aaron killed him, I’d say, ‘Kinda.’ ”

From there, Serena says, she’d go months without seeing her brother. “He’d hang around a lot in Vegas, spending time with Rod Stewart and some magician.” That magician? A whacked out David Copperfield, who boasts of the decade he spent partying with his “best friend” Aaron.

“7 Days in Hell” eventually gets to that epic, weeklong Wimbledon match — interrupted by bursts of rain and bouts of lovemaking — that pits Aaron against his arch-rival, England’s dim-bulb golden boy, Charles Poole (“Game of Thrones’ ” Kit Harington).

But first it wanders through some increasingly ridiculous side stories, along with some out-of-nowhere graphic nudity, involving everything from Aaron’s stint as an underwear mogul to the renaissance in Swedish courtroom sketching.

The result, at a mere 45 minutes, is more of an interesting curiosity than an accomplished piece of filmmaking.

But with a cast that also includes Fred Armisen, Will Forte, Karen Gillan, Howie Mandel, Michael Sheen, Mary Steenburgen and June Squibb, even if you don’t love the tennis comedy, it’s tough to find too many faults.

Contact Christopher Lawrence at clawrence@reviewjournal.com. Follow him on Twitter: @life_onthecouch