McFarland missed six games last season with a broken jaw, and said it would be “disrespectful” to play with anything less full effort.
“This is my senior year, and I love these girls,” McFarland said. “We have four people who can't play. So, every minute that you're on the court, you're representing them.
“To not play your heart out is disrespectful, and I didn't want to disrespect my teammates.”
Oklahoma, which next plays Thursday at home against UC-Riverside, turned the ball over 20 times Sunday, resulting in 23 Vanderbilt points.
Four Commodores scored in double figures. Christina Foggie had 17 points to lead Vanderbilt (8-3).
“You just go in the gym every day and try to get better,” Coale said when asked how the team can improve with its Jan. 2 conference opener looming.
“You pay attention to the things you can control. ... There are lots of things that we can control that we didn't do very well today.”