With their seventh-round pick in the First-Year Player Draft, No. 215 overall, the Reds selected second baseman Shane Mardirosian out of Martin Luther King High School in Riverside, Calif.

"So stoked," Mardirosian posted on Twitter after being picked.

In 103 games over four seasons with the King varsity team, the 17-year-old Mardirosian batted .383 with four homers and 60 RBIs. A left-handed hitter, he batted .347 in 25 games as his team's shortstop.

"We really liked the way he swings the bat," Reds senior director of amateur scouting Chris Buckley said. "He runs very well. It's very hard to find left-handed-hitting middle infielders. It's like finding a left-handed-hitting catcher. It's hard to do for whatever reason."

Currently, Mardirosian has signed with UC Santa Barbara to play collegiate baseball.

The Draft concludes Saturday, with exclusive coverage of Rounds 11-40 beginning on MLB.com at 1 p.m. ET.