Yorkshire have confirmed top-order batsman Phil Jaques will be out for around a month after he suffered a muscle tear under his ribs.
The 34-year-old Australian suffered the injury during the ongoing LV= County Championship match with Derbyshire, in which he made a first-innings 139.
He is expected to be sidelined for four to five weeks, with the four-day game against Nottinghamshire - starting on August 21 - earmarked as a potential fixture for his return.
“It is disappointing news that Phil has sustained a rib injury,” Yorkshire’s head physiotherapist, Scot McAllister, told the club’s official website.
“He only came back from a stomach strain a few weeks back and was looking in good shape. His innings was outstanding, but he felt a slight pain under his rib after making a pull shot.
“He won’t play any further part in this game and will start a rehabilitation programme over the next four weeks.”