With Matthew Hoggard on England duty, Morne Morkel forced to return to South Africa, Rana Naved-ul-Hasan unfit and Ajmal Shazad hamstrung, Yorkshire need one of their young bowlers to step up and Sheffield-born Sanderson is the man in form.

The 19-year-old was a long way down the fast-bowling pecking-order at the start of the season but three strong performances for the Second XI, culminating in last week's match figures of 10-81 against Nottinghamshire, have propelled him to the front of the queue.

In addition to his 4-51 and 6-30 against Notts, the right-arm academy product took 2-29 in two innings against Leicestershire and 1-3 off 12 overs against Glamorgan.

"He's similar to Hoggy," said Yorkshire's director of cricket Martyn Moxon, who also gives a Championship debut to opening batsman Adam Lyth. "He's got very similar attributes. He swings it and seams it. He's not express pace but he's pretty quick. He's having a very good season."

Sanderson, who played in just a third of Yorkshire's Second XI Championship fixtures last season, said: "This is brilliant. My chance has probably come a bit earlier than I expected, but I'm confident I'm going to do well."

Lyth is only a year older but has been knocking on the door of the senior side for two years, making his first-team debut in a Pro40 match in 2006. He has been a mainstay of the Second XI, scoring 540 runs at 45 in their Championship last season and hitting two centuries in his three innings in the competition this year – he is averaging 148.