Stay up to date with notifications from The IndependentNotifications can be managed in browser preferences.AllNewsSportCultureLifestyleUS men's national team star Christian Pulisic is battling a calf injury, making his availability uncertain for the crucial World Cup match against Australia on Friday. Pulisic has been undergoing individual training sessions for two consecutive days and is currently listed as "day to day" by a team spokesman. He was removed at halftime from the US's 4-1 victory over Paraguay due to stiffness, a decision coach Mauricio Pochettino described as precautionary. The injury originated from a kick to the back of his left calf during a training session last week. Despite the uncertainty, Pulisic remains optimistic about his recovery as the US prepares for a stern test against Australia, who won their opening match against Turkey. In fullChristian Pulisic in race to be fit for USA’s World Cup clash with Australia as injury update issuedThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in