Moxon has seen Yorkshire's Championship season fall apart

Yorkshire director of cricket Martyn Moxon has called on his side to mount a Pro 40 promotion charge by winning their next two matches.

Yorkshire are currently sixth in Division Two, five points behind the league leaders Essex.

"We've two games back-to-back and need to win both to be challenging the teams above," Moxon told BBC Radio Leeds.

"Essex and Kent have played more games than us. Winning these two games would put us right up there."

Yorkshire have a doubt over wicketkeeper Gerrard Brophy, who has a finger injury.

Simon Guy is on standby for Thursday's day-night Pro 40 match at Derbyshire.