Zach Eflin and the two other Phillies players are fully vaccinated, but they have tested positive for COVID. Bill Streicher-USA TODAY Sports

The Phillies announced they’ve placed three players — right-hander Zach Eflin, utilityman Luke Williams and catcher Andrew Knapp — on the COVID-19 injured list. Righty Enyel de los Santos and catcher Rafael Marchán were recalled from Triple-A Lehigh Valley, while outfielder Jorge Bonifacio was selected back to the roster. The three players were all fully vaccinated but have apparently tested positive for the virus, relays Todd Zolecki of MLB.com.

Eflin just returned from the 10-day injured list Thursday after missing five weeks with patellar tendonitis. He was scratched from Thursday night’s scheduled start due to recurring trouble with his knee and will now miss some time due to viral issues. When healthy, Eflin is one of the Phils' better starters, having pitched to a 4.17 ERA over 105 2/3 innings. Knapp and Williams, meanwhile, have gotten sporadic playing time in reserve capacities — Knapp as the No. 2 catcher, Williams in a multi-positional role.

Bonifacio returns to the big leagues just two days after being passed through outright waivers. The 28-year-old was called up last week and made two appearances before being designated for assignment. Because he was selected as a COVID replacement, Bonifacio won’t have to go on waivers this time around if he’s sent back down whenever the Phils are able to activate someone from the COVID IL.

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