What happened: Lucas Sanabria entered the match for Sergi Roberto in a 73rd-minute substitution.

Why it matters: The second-half midfield change follows a recurring rotation pattern after Sanabria replaced Roberto at halftime on Oct. 11 and in the 76th minute on Sept. 27. Both players also featured in a 72nd-minute triple substitution on Oct. 15.

What to watch: Sanabria plays out the final 17 minutes of regulation as the late-season rotation continues.