The game between the Miami Heat and the Boston Celtics Sunday night has been postponed after Miami announced it does not have the minimum eight players available because of ongoing COVID-19 contact tracing, ESPN reported.

Earlier Sunday, Heat guard Avery Bradley was placed into the health and safety protocol and was ruled out for Sunday night's game.

The Celtics were set to play with the minimum eight players after nine players were ruled out, including seven because of the NBA's health and safety protocols.

The NBA postponed a Dec. 23 game between the Oklahoma City Thunder and the Houston Rockets after the Rockets didn't have the minimum number of available players.

The coronavirus pandemic has affected at least 90 million people worldwide, according to data from John Hopkins University's Coronavirus Resource Center.

There were an additional 10 million global cases reported over the last 15 days, the data showed.

As of Sunday, 1,931,571 COVID-19 deaths have been reported around the globe, Johns Hopkins said.

The United States leads the world with cases and deaths, according to the data.

As of Sunday, the U.S. has 22,293,281 cases, roughly a quarter of the total world cases, and 373,588 deaths, roughly 19% of the world's deaths, Johns Hopkins reported.

California's coronavirus surge continues to worsen, according to new data released Sunday by the state's Health Department.

The state recorded 49,685 new cases after administering a record 473,076 tests, the Health Department said. There were 468 new fatalities on Sunday, according to the Health Department.

All metrics were over 1% increases from the previous day, the health data showed. Since the start of the pandemic, California has 2,670,962 confirmed cases of COVID-19 and 29,701 deaths, the Health Department said.

As of Jan. 9, 734,405 coronavirus vaccine doses have been administered, according to the Health Department.

The United Kingdom saw another day of rising coronavirus cases, deaths and hospitalizations, according to the British government.

The nation recorded 54,940 new cases Sunday, bringing the total number of cases to 3,072,349, the health data showed. The seven-day average for new cases rose from 21,698 on Dec. 10 to 61,106 on Jan. 1, the British government said.

The U.K. saw 563 new COVID-19-related fatalities Sunday, according to the health data. The country has 81,431 total deaths since the start of the pandemic, the government said.

There are currently 32,294 people hospitalized in Britain. The seven-day average for new hospital admissions rose from 1,728 on Dec. 10 to 3,345 on Jan. 1, officials said.

The COVID-19 variant first found in the United Kingdom has now been detected in eight states, with officials announcing cases Thursday in Pennsylvania, Texas and Connecticut.

In Pennsylvania, the case was confirmed in Dauphin County, which encompasses Harrisburg.

“This individual tested positive after known international exposure. A case investigation and contact tracing were performed to identify, inform and monitor anyone who was in close contact with this individual,” state officials said. “The individual had mild symptoms, which have since been resolved while they completed their isolation at home.”

“Pennsylvania has been preparing for this variant by working closely with the Centers for Disease Control and Prevention (CDC) and has been sending 10-35 random samples biweekly to the CDC since November to study sequencing and detect any potential cases for this new COVID-19 variant,” Secretary of Health Dr. Rachel Levine said in a statement. “Public health experts are in the early stages of working to better understand this new variant, how it spreads and how it affects people who are infected with it.”

The variant was also confirmed for the first time in Texas on Thursday, officials said. The case was in Harris County, which encompasses Houston.

The man has had no history of travel and is stable in isolation, Harris County officials said.

Epidemiologists are working to identify and quarantine his close contacts.

In Connecticut, two unrelated cases were confirmed in New Haven County, Gov. Ned Lamont said Thursday.

The two people are between the ages of 15 and 25 and both "recently traveled outside Connecticut -- one to Ireland and the other to New York State -- and both developed symptoms within 3 to 4 days of their return," Lamont's office said.

"They are in the process of being re-interviewed by public health officials in light of the identification of the UK variant as the cause of their illnesses," his office said. "One individual has completed their self-isolation period, and the other is self-isolating at their home and will remain there until they are 10 days past the onset of symptoms and they are symptom free."

COVID-19 mutates regularly and the variant first detected in the U.K. has now been confirmed in at least eight states: Georgia, New York, Colorado, California, Florida and now Pennsylvania and Texas. While it appears to spread more easily, there's no evidence that it's more deadly.