Reggie Lambe and his Carlisle United teammates were back on home soil for the visit of Chesterfield.
Reggie Lambe In Action
And they got back to winning ways courtesy of goals from Etuhu and O'Sullivan and an overall disciplined and determined performance.
A long ball over the top from Clint Hill to Ashley Nadesan had the United fans on their feet just after kick off as the nippy forward beat his man to bring Lambe into play. A heavy first touch from the wide man made it easy to clear for the alert Jack McCourt.
Carlisle got the goal they deserved on 19 minutes when Hallam Hope and Jamie Devitt stayed strong to work the ball to Nadesan. His touch invited a 22-yard shot from Etuhu and he made no mistake as he rattled it into the bottom corner.
The response from the visitors was almost immediate as Josh Kay carried the ball forward from his own half. Etuhu pulled up with an injury as he shaped to make a challenge, and that left a clear path to the 18-yard box for the defender. The shot was crisp but Jack Bonham was happy to watch it go past his upright.
Devitt shot straight at the keeper after he was put through by Lambe from a tight angle, with Aaron Ramsdale well positioned to deal with the danger.
Hope scuffed a shot at Ramsdale as Carlisle tried to assert their authority, and Lambe forced the keeper into a parried save with Carlisle looking to put the game out of sight.
And they did just that with eight minutes left to play when a Devitt corner was nodded down by Tom Parkes. It was blocked, but it ran free for substitute John O'Sullivan and he kept his cool as he smashed the pieces into the bottom corner.