LAS VEGAS — Bryn Forbes has access to the internet. He can Google the Spurs’ roster as it currently stands.

He also owns a calculator. He can do the math.

The second-year guard is well aware roster spots in San Antonio are filling up fast, and nothing is guaranteed to him.

He has to scrap every day in Summer League to stake his claim.

“No matter what, I’d still feel like that,” Forbes said. “That’s what I’ve had to do this whole time to get to this point even. I’m not going to stop now, or ever.”

Forbes is in the midst of a scorching July that has rendered him the Steph Curry of the Spurs’ summer league team.

Having led the Utah Summer League in scoring at 21.3 points per game, the 23-year-old Forbes has opened the Las Vegas portion of the summer schedule with a vengeance as well.

He scored 35 points in Sunday’s 101-95 win over Philadelphia, the most any player has notched in any of the three NBA Summer Leagues.

Recalling the sting of going undrafted out of Michigan State last summer, Forbes realizes he can’t afford to rest on those laurels in July.

More Information Spurs Las Vegas Summer League schedule Today: Spurs vs. Portland, 3 p.m., NBA TV

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“Bryn’s mentality is he still has a long way to go,” said Will Hardy, the Spurs’ summer league coach. “That’s how he’s attacking this process.”

Forbes can still recall his first few days with the Spurs last season.

After the initial disappointment of a fallow draft day, the 6-foot-3 Forbes signed on with the Spurs’ Summer League squad in hopes of finding an NBA job the hard way.

Forbes describes his feeling at this time a year ago in three words: “Nervous as hell.”

A different Forbes arrived in Salt Lake City and Las Vegas this summer.

He is more vocal. He carries himself with a bit of swagger. He believes he belongs.

When Forbes has missed a shot this summer — such as the potential game-winner in Saturday’s one-point loss to Miami — he might clap his hands in disgust and bark out an epithet.

The quiet, unassuming rookie who often hid out in the corner of the Spurs’ locker room unnoticed last season is gone.

“I just know a lot more than I did at first,” Forbes said. “I was coming in not knowing anything, really. This year, there’s other guys coming in not knowing much. You’ve got to be a leader and tell them how to do things.”

Forbes’ teammates have enjoyed this aggressive side of him.

“We told him this summer, you’ve got to be more vocal, you’ve got to play defense, you’ve got to do the little things, (get the) loose balls,” point guard Dejounte Murray said. “It’s stuff he’s not used to doing. I think he’s doing a great job to start the summer, he’s just got to keep progressing.”

There is a chance not even a summer as sizzling as this one will be enough to secure Forbes a roster spot in the fall.

The Spurs have commitments from 12 players for next season already, including free-agent center Joffrey Lauvergne, who agreed to a two-year deal Monday.

The team still has business to take care of with free-agent guards Jonathon Simmons and Manu Ginobili. If both return, the Spurs will have one spot open on their 15-man roster.

Eight of the slots already filled belong to perimeter players. Forbes’ $1.32 million contract for next season does not become fully guaranteed until Jan. 10.

Add all that up, and it’s not surprising Forbes feels as if he is playing for his job this summer. There is a lot of arithmetic working against him.

Nights such as Sunday can only help him.

Against Philly, Forbes was only 2-for-9 from behind the 3-point arc, his bread-and-butter last season.

Instead, Forbes did damage on a handful of silky, acrobatic drives. He also got to the foul line, converting 17 of 17 free throws.

It was a side Forbes rarely showed as a rookie, when he appeared in 36 games of mostly mop-up duty.

“He’s obviously hunting on the offensive end really well,” Hardy said. “He’s showing everybody there’s a variety to him. He’s not just catch-and-shoot.”

Whether that is sufficient to earn Forbes a return to the Spurs remains to be seen.

If not, he has almost certainly done enough to earn a look from another NBA team.

Know this about Forbes. He isn’t about to stop trying to make his case.

Not now or ever.

jmcdonald@express-news.net

Twitter: @JMcDonald_SAEN