He enters the game against the Blazers having recorded triple-doubles in nine consecutive games, tying Wilt Chamberlain's NBA record.
"It's not really surprising no more," Thunder guard Terrance Ferguson said of Westbrook's streak. "I see him do it all the time and the type of caliber player that he is, it's so easy for him that you don't even notice it but it's there.
"He gets everybody involved. He's a great leader."
Westbrook is doing it during one of the best stretches of the season for the Thunder, who are 10-1 in their last eleven games and coming off a comeback from a 26-point deficit in Saturday's win at Houston.
Early in that game, Westbrook and Paul George carried the Thunder defensively. In the second half, when OKC rallied, Westbrook concentrated more on getting his teammates involved.
"That's what a point guard's job is," George said. "He gets everybody playing at a high level. He's going to be confrontational in a positive way to lift guys."
It's a critical stretch for Portland, who fell to 10-14 on the road Sunday. The Blazers are three games behind the Thunder for third place in the Western Conference, and one game ahead of Houston for fourth.
"We have to learn from this one but they're a little bit different style of team than this team that we played tonight," Blazers coach Terry Stotts said after Sunday's loss.
Oklahoma City enters Monday's action one game back of Denver for second place in the Western Conference.
The Thunder have won the first two meetings between the teams, including a 123-114 decision on Jan. 22 in Oklahoma City.
Another win would clinch the season series for the Thunder, which could be critical in the postseason as the teams battle for seeding.