Dernbach is a wicket-taking seamer whose economy rate has improved as he has developed at Surrey.
He is noted for his excellently disguised slower ball, out the back of the hand with a vertical seam.
The South-African born medium-fast bowler became the county’s youngest debutant for 30 years in 2005 but initially struggled, proving expensive in his second appearance - the Twenty20 Cup semi-final defeat to Lancashire.
He progressed and in 2007 was rewarded with a place in the ECB skill set programme at Loughborough.
Dernbach came on leaps and bounds in 2008 as he took on the responsibility of leading the attack, excelling in the NatWest Pro40 and claiming a career-best 6-72 against Somerset in the LV= County Championship.
Having taken part in a month-long ECB training programme in Florida the winter before, he was Surrey's leading championship wicket-taker in 2009 with 37.
He improved on that by nine in the same number of games the following season and was rewarded with a place in the England Performance Programme squad and England's 30-man World Cup party that winter, although he missed out on the initial 15.
However, as leading wicket-taker on England Lions' tour of the West Indies, he was called up to the World Cup party to replace the injured Ajmal Shahzad.
Dernbach finally made his debut for England in the Twenty20 international against Sri Lanka that summer, picking up the wicket of Sanath Jayasuriya. He went on to play in all five one-dayers and took two crucial wickets in the deciding match, at the death, to secure the series for England.
Having helped Surrey to championship promotion, figures of 4-30 in the Clydesdale Bank 40 final made him man of the match in the Lions’ victory over Somerset.
He was awarded an ECB increment contract for 2011-12, but was expensive in the limited-overs tour of India.
After impressing for the Lions in Bangladesh and Sri Lanka, Dernbach produced some much-improved performances in England’s limited-overs series victories over Pakistan in the United Arab Emirates.
He continued to represent England in both short formats that summer and was part of their squad for the World Twenty20 in Sri Lanka, playing all but one game as England were eliminated in the Super Eights.