Chelsea manager Thomas Tuchel confirmed that winger Christian Pulisic sustained a hamstring injury in Saturday's 5–2 loss to West Bromwich Albion.
The American international scored his first Premier League goal since December—only his second league goal of the season—when he jumped on the rebound of a Marcos Alonso free-kick to give Chelsea a 1–0 lead in the 27th minute. But with Chelsea trailing 2–1 and down to 10 men at the halftime break, Pulisic sprinted onto the field to begin his warmup only to clutch his hamstring and return immediately to the bench in front of an incredulous Tuchel.