David Mijares (L) and Jorrell Sparenberg pose after weighing in for their fight on an “LA Fight Club” show on Aug. 19, 2016. Photo Golden Boy Promotions

When David Mijares and his father-trainer, David Paul, decided their amateur boxing journey had come to an end late last year, they took their time in selecting a management team and promotional company to guide their foray into the professional ranks.

They went with Sheer Sports Management in January and signed with Golden Boy Promotions in April, so the close-knit father-and-son team is looking to make up for lost time. Mijares (2-0, 1 KO) will fight for the third time as a pro when he faces Jorell Sparenberg in the opening bout of the “LA Fight Club” show headlined by Vyacheslav Shabranskyy-Oscar Riojas at The Belasco Theater in Los Angeles on Friday.

The 20-year-old junior welterweight hopes to fight five times before the year is out and he’s pleased with his professional development so far.

“I still had that amateur mentality in my first pro fight, so I did what I usually do, stick and move,” said Mijares, who stopped Cory Van Baur in the third round in his last bout on June 11 in Salt Lake City, Utah. “In my second fight, I felt I could sit down more with my shots. That’s something I’ve been working on for this fight.

“I want to control the pace and stress my opponent out. I want to put the pressure on, I want him to feel me and that impending doom.”

Harsh words but Mijares’ says it with a friendly smile and a gleam in his hazel eyes.

Paul describes the style they are working on as “psychological pressure.”

“It’s being active all the time but not bearing down constantly,” said Paul, who accompanies his son to the Wild Card Boxing Club for sparring three days a week where the southpaw has worked with top-10 contenders Viktor Postol and Jesus Cuellar, as well as veteran Raymundo Beltran.

“It’s like he’s there but he’s not there.”

Mijares’ scheduled four-round bout against Sparenberg (0-1), a 24-year-old Houston resident with an MMA background, will kick off of the RingTVLive stream, which can be viewed on RingTVLive.com, FilmOn.com and Fenomeno Studios YouTube channel (Spanish feed) beginning at 5:30 p.m. PT.

It’s a far cry from the last time he was in the lead-off bout of an undercard. His pro debut, a four-round decision over Omar Reyes, took place on the undercard of the Canelo Alvarez-Amir Khan fight at T-Mobile Arena in Las Vegas on May 7.

Belasco Theater is a much, much smaller (and older) venue than T-Mobile Arena but it’s a significant step in Mijares’ career as it will be the first time the Pasadena resident fights at home as a pro. His family and friends will be able to witness his “psychological pressure” up close in the intimate theater/night club, and many hardcore fans may also tune in.

“Friday is an introduction to RingTVLive fans and I want to put on a show for them,” Mijares said. “The sport needs those fans, they’re the backbone of boxing.”

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