Portis is officially out for Wednesday's game against Detroit due to a right elbow contusion, Eric Nehm of The Athletic reports.
Portis finished with 17 points (8-17 FG, 1-7 3Pt) and eight rebounds in 18 minutes off the bench during Tuesday's 99-85 victory over the Raptors.
Portis posted four points (1-8 FG, 0-3 3Pt, 2-2 FT), five rebounds and one assist across 17 minutes during Friday's 116-94 loss to New York.
Portis ended Monday's 116-114 loss to the Cavaliers with 21 points (10-21 FG, 0-2 3Pt, 1-2 FT), 18 rebounds, three blocks and one assist in 39 minutes.
Portis is in the Bucks' starting lineup for Monday's game against the Cavaliers.
Portis contributed four points (2-6 FG, 0-1 3Pt), six rebounds and one block across 19 minutes during Monday's 119-108 loss to the Celtics.
Portis (rest) isn't listed on the injury report for Wednesday's regular-season opener against the 76ers.
Portis (rest) is inactive for Thursday's preseason game against the Mavericks, Eric Nehm of The Athletic reports.
Portis delivered 16 points (5-7 FG, 4-5 3Pt, 2-2 FT), a rebound and an assist across 14 minutes off the bench in Sunday's 120-87 preseason loss to the Pistons.
Portis has been ejected from Sunday's contest against the Pacers, Kelly Iko of The Athletic reports.