AC Milan forward Christian Pulisic was forced to leave the field after 45 minutes during the US World Cup opener due to a calf issue. The decision to substitute him was precautionary, and Milan fans can breathe a sigh of relief knowing it's not expected to be a long-term absence. Pulisic has had similar problems in the past, particularly during his time at Chelsea.

Pulisic explained that he experienced a small knock in the first half and underwent some precautions to avoid further injury. He expressed optimism that it won't be a serious issue, stating that he's had similar problems before and is staying positive. The forward did acknowledge that calf problems have been a recurring issue for him.

While the initial signs are reassuring, persistent calf problems are not ideal for Pulisic or AC Milan. If the issue persists, he may require a longer break or more extensive treatment. For now, Milan fans will be monitoring his situation closely as the tournament progresses.

The US team's medical staff will likely take a cautious approach with Pulisic, given his history with calf injuries. AC Milan will be keeping a close eye on his progress, hoping that he can recover quickly and avoid any significant disruption to his playing time.