Janek was selected by the
Houston Astros in the first round with the 28th overall pick in the
2024 Major League Baseball draft. On July 26, 2024, Janek signed with the Astros on a $3.1 million contract. Janek was assigned to the
Asheville Tourists of the
High-A South Atlantic League to begin his professional career. Over 25 games, he hit .175 with one home run and 11 RBIs. He returned to Asheville to open the 2025 season. ==References==