The 29-year-old scored the opening goal of the Championship clash between Leeds and Watford at Elland Road on Saturday.
The former Southampton star found the target from close range in the seventh minute for the 150th goal of his strike.
Sharp failed to add to his tally in the match which ended in a 3-2 comeback win for Watford, but he was not given much service from midfield.
The Englishman ended the game with one shot, 86% pass accuracy, one chance created and three crosses.
Sharp has been in and out of the team this season, but his performance against Watford impressed manager Redfearn.
“We’ll have to see how he (Steve Morison) feels on Monday, but I thought Billy Sharp was excellent,” the Englishman told Leeds’s official website.
”I thought he led the line well and he took his goal well. He did his talking on the pitch where you want him to do it.”
The question now is whether Redfearn should keep Sharp in his starting line-up for Wednesday’s Championship game against Ipswich Town at Elland Road.
Much will depend on the formation that the Leeds boss wants to deploy against Ipswich, but perhaps it would not be fair to Sharp if he is dropped to the substitutes’ bench again.
Leeds are quite well-equipped in forwards, who have different attributes, but against Ipswich if Redfearn retains his faith in Sharp, then he could be rewarded as the 29-year-old's confidence has been boosted because of the goal against Watford.