What happened: Folarin Balogun earned his first start for Monaco since the World Cup on Thursday. Weston McKennie was held out of uniform for Juventus due to a muscle injury, while Malik Tillman was named to the bench for Bayer Leverkusen. Auston Trusty was not in uniform for Celtic, remaining sidelined since Oct. 15 following his father's death.

Why it matters: The minutes are pivotal for Balogun, who recently returned to the USMNT roster for the Nations League quarterfinals against Haiti. McKennie's muscle injury adds another fitness concern for Juventus across European and domestic competition.

What to watch: Monaco and Bayer Leverkusen conclude their Thursday European fixtures before heading into weekend domestic action. The U.S. squad convenes next week for its quarterfinal first leg.