The Premier League will hold an emergency meeting on Friday, with the Arsenal and Chelsea first-team squads in self-isolation after positive coronavirus tests for Gunners manager Mikel Arteta and Chelsea winger Callum Hudson -Odoi.This weekend's program is now in jeopardy after Arsenal confirmed Arteta had contracted Covid-19 before Chelsea reported Hudson-Odoi's case hours later.The Gunners' trip to Brighton on Saturday was immediately postponed and further games appear certain to follow, while in golf, the US PGA on Thursday called off the Players Championship at Sawgrass after the first round, as well as its scheduled tournaments for the next three weeks.The Premier League could follow the NBA in suspending its season, with US basketball officials clarifying on Thursday the league will be halted for at least 30 days.Leicester (three) and Manchester City (one) also have players in self-isolation and the Premier L eague, who earlier on Thursday said games would go ahead as planned, said it would "convene an emergency club meeting regarding fixtures". A number of high-profile sporting events around the world have already been canceled due to the coronavirus pandemic with Sunday's Australian Grand Prix becoming a casualty on Thursday night. The race, which was due to take place in Melbourne on Sunday, was called off after a member of the McLaren team tested positive. McLaren had already decided to withdraw but, following a meeting of race organizers and team bosses, the race was canceled. # F1 – FIA, Formula 1 and Australian Grand Prix Corporation joint statement regarding the cancellation of the 2020 FIA Formula 1 Australian Grand Prixhttps: //t.co/ecqwHzDCAL – FIA (@fia) March 12, 2020 A statement from the sport's governing body, the FIA, read: “Those discussions concluded with a majority view of the teams that the race should not go ahead. The FIA and Formula 1, with the full support of the Australian Grand Prix Corporation have therefore taken the decision that all Formula 1 activity for the Australian Grand Prix is canceled. "F1 bosses have discussed suspending the start of the new season until June. next weekend's behind-closed-doors race in Bahrain is yet to be formally called off, it is understood that the view of the sport's traveling circus is to delay the campaign until the Azerbaijan Grand Prix, pencilled in for June 7, at the earliest. As it stands, the season is due to end in Abu Dhabi on November 29, but the PA news agency now understands that the race could be pushed back until December in a rejigged calendar. There may be no room for the races in Monaco, Bahrain and Spain, and there are no plans for the round in Melbourne to be rescheduled. "The scale of this is massive," said F1 motorsport boss Ross Brawn. "We want to try and build the Formula One season back up, but we have to be realistic when that can start again."