Vladimir Guerrero Jr. is heading to Triple-A Buffalo, a source told MLB.com’s Jesse Sanchez.

The 20-year-old phenom, who is MLB Pipeline’s No. 1 overall prospect, opened the season with Class A Advanced Dunedin after suffering a left oblique strain during Spring Training. In four games with Dunedin, Guerrero went 4-for-15 with a double and a walk.

Triple-A Buffalo is expected to be Guerrero’s final stop before he makes his Major League debut. Blue Jays president Mark Shapiro said in late March that Guerrero would be on an "accelerated" path to the Majors once he returned to health.

Guerrero experienced Triple-A competition for the first time in 2018 and hit .336/.414/.564 with six homers in 30 games.

His return to Buffalo’s lineup will have to wait, however, as the team’s scheduled game on Wednesday was postponed due to cold weather.

Buffalo is scheduled to begin a seven-game road trip on Thursday night, starting with a four-game set against Scranton/Wilkes-Barre (Yankees' Triple-A affiliate).