The Cleveland Cavaliers have the best record in the NBA, but Norm Nixon tells TMZ Sports he’s not entirely sold they’re a real threat to win the championship.

We caught up with the former “Showtime” Lakers star out at LAX this week … and he made it clear, he’s got some serious questions about Cleveland’s roster.

He told us he thinks the Cavs are good — they do, after all, own the most wins in the Eastern Conference — but he wondered out loud how they’ll handle the bright lights of April, May and June.

“Until they win — until they can prove they can win on the big stage,” he said, “that’s the hesitation.”

Nixon appeared to be far more comfortable placing his proverbial bets on the Oklahoma City Thunder and Boston Celtics.

As for his old Los Angeles team, Nixon — who played in the City of Angels from 1973 to 1983 and won two NBA championships — was pretty bullish on LeBron James and Co … though he admitted the squad has to stay healthy if it wants to push for an NBA Finals appearance.

Benny Blanco‘s looks over the years are a GO-mez!

Here is a 24-year-old version of the curly-cutie record producer at the 60th annual BMI Pop Awards at the Beverly Wilshire Hotel back in 2012 (left). This was years before he released his debut single “Eastside” with Halsey and Khalid.

And, 13 years later Mr. Blanco was all smiles — giving wedding vibes in a white lacey shirt n’ jacket at an awards show earlier this year (right).

We know Selena Gomez is quite fond of her fiancé — so much so she collab’d with him on their latest album, “I Said I Love You First,” but the question here is:

Concealed within this big-eyed Hollywood babe, is a movie star who was born in the early 2000s. Given the clues, do you think you’ve got the pop culture knowledge to score the unknown triple threat?

You may not know she dances, but her moves to Chappell Roan‘s music are “H-O-T-T-O-G-O!,” and she’s also taken her talents to the Broadway stage for her role as Juliet. Her latest movie came out earlier this weekend, also starring Gal Gadot.

And for the grand finale: she was named after Rachel Green from the TV series “Friends.”