The Grizzlies have been a tremendous Over road team. They've gone Over in 18 of their past 24 away matchups for 75 percent. 

If you discount the Grizzlies' last game, a 117-105 loss to the Clippers two days ago, Memphis is averaging 121.8 points in its past eight road games. 
A big takeaway from the Grizzlies' game against the Clippers was the season debut of 6-foot-11 Jaren Jackson Jr. He scored 15 points in fewer than 18 minutes. The Grizzlies now have an inside scoring threat to go with Ja Morant and a bunch of outside gunners. Jackson averaged 17.4 points last season. 

Portland ranks 25th in scoring defense and 26th in defensive field goal percentage. So the Grizzlies should get their points. 
The Trail Blazers are a top-10 scoring team and Memphis is a below average defensive club.

The Trail Blazers finally are fully healthy. Damian Lillard had missed three games with a hamstring injury. He returned in Portland's last game, a 106-105 home loss to the Nuggets this past Wednesday. Lillard, though, was rusty shooting only 9-of-23 from the floor, including missing eight of 10 shots from 3-point range. I'm expecting a much better performance from Lillard.