Coronavirus: Here's what happened in the sports world on Sunday

The latest on how the coronavirus outbreak is affecting sports around the globe:

• NHLers must follow quarantine orders before playing, Trudeau says
• Pole vaulters Lavillenie, Duplantis share gold in backyard event
• Tennis' U.S. Open to be held at Indian Wells later this year?
• PGA Championship venue Harding Park reopening on Monday
• Premier League may face legal action with incomplete season
• Spanish soccer league clubs can resume training Monday

Trudeau says NHL would need to follow quarantine rules

The NHL could face another hurdle if the league decides to continue the 2019-20 season in the near future — getting non-Canadian resident players across the border to join their respective teams.

Prime Minister Justin Trudeau said Sunday that players would — at a minimum — need to follow quarantine protocols if they were to arrive in Canada while the border remains closed due to the pandemic.

"I think it's a question we'll have to look into," Trudeau said in a press briefing. "Certainly at a strict minimum, anyone who arrives from another country will have to follow all the rules of quarantine in an extremely strict manner, but we're not there yet in our discussions with the NHL."

The Associated Press reported earlier this week that Edmonton and Toronto were being looked at as possible "hockey pod" cities that could host the remainder of the NHL season during the summer months. Games would be played in air-conditioned arenas without fans.

A person familiar with discussions told The Associated Press that the most aggressive timetable would have players returning to their home rinks as early as May 15, followed by a training camp and possible exhibition games in June.

Pole vault stars set bar high in backyard competition

Mondo Duplantis of Sweden and Renaud Lavillenie of France tied for the gold medal Sunday during a men's pole vault competition held in their own backyards. It was a rare sporting event held during the coronavirus pandemic.

Duplantis and Lavillenie each cleared a height of five metres (16 feet) 36 times over a span of 30 minutes that was broadcast by World Athletics on its social media channels. Both had one miss. Sam Kendricks of the United States wound up third by clearing the bar 26 times.

They tried to figure out a tiebreaker before electing to award double gold. The 20-year-old Duplantis initially pushed for a three-minute playoffs, while the 33-year-old Lavillenie nixed the plan.

It was billed as the "Ultimate Garden Clash" and could be a model for future track events. The outbreak of COVID-19 has led to the Tokyo Olympics being moved to 2021, along with the track and field season being put on hold.

Tennis officials consider hosting U.S. Open at Indian Wells

The Southern California desert could host tennis' U.S. Open later this year if the event is unable to take place in New York this summer.

New USTA executive director Michael Dowse told Inside Tennis magazine that he will know more in June, but if the September event is unable to take place at the USTA Billie Jean National Tennis Center in Queens because of the coronavirus pandemic, he has an alternate option at the ready.

The contingency plan at the Indians Wells Tennis Center in California's Coachella Valley could take place as late as November. The 16,000-seat stadium at Indian Wells is the second largest tennis-specific stadium in the United States.

The BNP Paribas Open, scheduled for March at Indian Wells, was the first international tennis event that was canceled in advance of the coronavirus pandemic.

PGA Championship venue Harding Park reopening Monday

The Harding Park golf course which is scheduled to host the PGA Championship in August will reopen on Monday.

The course closed seven weeks ago due to a local "shelter in place" order in San Francisco over coronavirus concerns.

"The San Francisco Office of Public Health has permitted golf with the implementation of practices that minimize the risk of spreading COVID-19," TPC Harding Park said on its website on Sunday.

"In order for us to abide by those standards and create a safe environment for everyone, we ask for your help."

It listed a number of rules including that golfers must remain at least six feet (1.8 metres) apart and play in the order they start, with no playing through allowed.

Harding Park had been originally slated to host the PGA Championship from May 14-17, but the event has been rescheduled for Aug. 6-9, by which time it is hoped the coronavirus outbreak has been largely controlled.

The PGA Championship is one of three majors to be rescheduled this year, with the U.S. Open moving from June to September and the Masters from April to November.

The British Open has been cancelled.

The PGA Tour's weekly circuit of tournaments is scheduled to resume on June 11 with the Charles Schwab Challenge in Fort Worth, Texas. It will be contested without any fans in attendance.

Legal action fears if Premier League season doesn't finish

The Premier League could face years of legal challenges if this season is not completed due to the coronavirus pandemic, the chairman of Crystal Palace warned Sunday.

Steve Parish offered public support for the league's Project Restart plans after relegation-threatened Brighton and West Ham expressed concerns about teams being forced to play their remaining games in neutral stadiums.

The league is working with the government to find a safe way for players to resume group training and play games by June at the earliest.

But the French and Dutch league seasons have already been halted by their governments amid ongoing concerns about sporting fixtures spreading COVID-19 infections. While Paris Saint-Germain was crowned French champion last week despite Ligue 1 ending prematurely, Ajax will not be awarded the Dutch title.

"The ramifications of each are complex and could involve legal challenges that run on for months, if not years. But, yes, it is partly about the money. And we should all care about the money."

Parish highlighted the "many secondary industries football enriches," with the Premier League fearing losses of more than one billion pounds from an incomplete campaign as broadcasting commitments are not met.

La Liga to resume individual training sessions

Players from Spanish league clubs will be allowed to resume training on Monday as Spain eases some of the lockdown measures that had been in place because of the coronavirus pandemic.

The government is allowing players to train individually at the clubs' facilities while observing a series of safety measures pre-established by the league and local authorities.

The league, which is expected to resume sometime in June, prepared a detailed four-phase training protocol that has already been distributed to clubs. Smaller group sessions and full squad sessions are likely to be allowed in the coming weeks.

All players were expected to be tested for COVID-19 before resuming their training sessions.

Some Serie A players set to resume practising

Serie A soccer clubs are in limbo with several regions of Italy allowing players to begin practicing on an individual basis at training centres on Monday while the government has set a May 18 return to the practice field for teams.

Sports minister Vincenzo Spadafora is seeking clarification from the government's techno-scientific coronavirus commission.

Emilia-Romagna, Campania, Lazio and Sardinia have each given the go-ahead for teams in their regions to begin individual training. Those regions contain eight Serie A clubs: Bologna, Sassuolo, Spal, Parma, Napoli, Lazio, Roma and Cagliari.

Serie A has been suspended since March 9, when the government ordered a nationwide lockdown. The government announced a week ago that individual athletes can resume training on Monday May 4, while teams can restart May 18.