Milwaukee Bucks All-Star wing Khris Middleton is the latest notable NBA player to enter the league's health and safety protocols.

The Bucks listed Middleton as out for Tuesday's game vs. the Detroit Pistons.

Middleton sat out Milwaukee's 107-95 loss to the Utah Jazz on Sunday due to an undisclosed illness. Bucks head coach Mike Budenholzer said he was “assuming” it was not related to COVID-19.

It's unclear how many games Middleton will miss. Players who test positive for COVID-19 have to quarantine for at least 10 days or produce two negative tests at least 24 hours apart. Close contacts have a shorter waiting period depending on their vaccination status.

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Middleton is putting up 20.0 points, 4.7 rebounds, and 4.5 assists through six games this season. He's shooting 43.1 percent from the field and 25.7 percent from three-point range.

The injury-riddled Bucks are 3-4 after dropping their past three straight games. Jrue Holiday has appeared in just two games due to a bruised right heel. Brook Lopez has been out with a back injury. Donte DiVicenzo is still recovering from left ankle surgery stemming from the 2021 playoffs and has yet to make his 2021-22 debut.

Cleveland Cavaliers‘ big Kevin Love was ruled out for several games after entering the protocols on Monday. Philadelphia 76ers forward Tobias Harris also entered protocols this week.

Just before the start of the season, Boston Celtics‘ starters Jaylen Brown and Al Horford were placed in COVID-19 protocols.

Teams are not required to disclose the specific medical status of players — only their playing status.