NEW YORK -- The Yankees' post-All-Star break opener against the Boston Red Sox on Thursday night was postponed because of positive covid-19 tests among vaccinated New York pitchers Jonathan Loaisiga, Nestor Cortes Jr. and Wandy Peralta.
"It's a fluid situation that could spread. It has spread to some degree," Yankees General Manager Brian Cashman said. "We have three positives, and we have three pending that we've had rapid tests on. We'll wait now for the lab tests to come back, which I'm assuming is going to be positive as well. So that would increase our number to six, but we're not at six yet. We're at three confirmed."
Loaisiga went on the covid-19 injured list Saturday, when the Yankees were in Houston, and he did not travel home with the team Sunday. Cortes and Peralta went on the covid-19 IL on Thursday.
Cashman said all three were fully vaccinated, as are most of the players on the team. Among the three, two received the Johnson & Johnson vaccine, and the other was either Pfizer or Moderna, according to Cashman.
"Those players are doing well thus far," he said. "And that would speak again to the belief that those vaccinations are working and ultimately they're to protect us from severe illness and/or death."
The three players awaiting lab results are in quarantine. Cashman would not say whether they include the Yankees' All-Stars who were in Denver: Aaron Judge, Gerrit Cole and Aroldis Chapman.
MLB was conducting contact tracing under its protocols.
Cashman said Major League Baseball had not yet decided whether to postpone today's second scheduled game of the four-game series.
This was the eighth covid-related postponement this season but the first in nearly three months. Also put off were a three-game series that had the New York Mets at Washington from April 1-4; Atlanta's game at the Nationals on April 5; two Minnesota at Los Angeles Angels games on April 17-18; and a Twins at Oakland game on April 19.
There were 45 regular-season games postponed for virus-related reasons during last year's pandemic-shortened season, but just two were not made up between St. Louis and Detroit.
New York, fourth in the AL East at 46-43, was among the first MLB teams to reach the 85% vaccination threshold that triggers a lessening of coronavirus protocols such as dropping mask use in dugouts and bullpens.
MLB said in its last announcement June 25 that 23 of it 30 teams had reached 85% vaccinations among Tier 1 individuals such as players and on-field staff. The Red Sox were not among them.
Despite all those vaccinations, the Yankees had more than a half-dozen positive covid tests in May involving staff, including pitching coach Matt Blake, third base coach Phil Nevin and first base coach Reggie Willits. Nevin, despite being vaccinated, became seriously ill with a kidney infection that kept him away from the team for more than three weeks.
No Yankees players tested positive then, though shortstop Gleyber Torres had a false positive, according to Boone.
New York players were on the field taking early batting practice about 3 1/2 hours before the scheduled start Thursday when the Yankees asked media to leave the field while the team conducted covid testing.