Roebuck has yet to make her Barca debut as she continues her rehabilitation process, having suffered a type of stroke during her final season at Man City, but she is in the squad for this week's game. Walsh, on the other hand, is expected to play a significant role in this fixture and Greenwood is fully aware of the quality she could bring to the table for City's opponent.
"I could speak about Keira all day," the defender said. "I think she's an incredible footballer. I've been lucky enough to play with her here at City, I get to play with her for England. What she does off the ball, on the ball, she's so intelligent as a player and I think she's improved since she's moved. I think off the ball, definitely, and she's now added goals and assists - hopefully not tomorrow - to her game. She's a top player and I have so much respect for her."