knights director of rugby Brett Davey wants his side to prove they are worthy of a place in the upper reaches of the Championship after returning to winning ways at Esher.
The victory ensured Doncaster have a clean sweep of wins over the bottom five sides in the division.
But Davey has urged the Knights to pick up their first top six scalp when they welcome London Welsh to Castle Park on Saturday.
He said: “We’ve got to start beating some of the top teams as well as those at the bottom.
“The players know they underperformed the week before against Nottingham but I was delighted with the response I got from them at Esher.
“We’ve not beaten London Welsh for a while but we know that on our day we can beat anyone at this level.”
The Knights made hard work of beating bottom of the table Esher.
Davey’s side secured a bonus point victory which maintains their challenge, but they were made to work hard by an Esher side led by former Rotherham legend Mike Schmid.
After the home side had scored a converted try from centre Phil Mackenzie, Doncaster left winger Michael Keating touched down twice on 21 and 30 minutes, full-back David McIlwaine converting both to give the visitors a 7-14 lead.
Their third try came from flanker Latu Makaafi shortly after the half time break, and although the conversion was missed, McIlwaine added a penalty ten minutes later which kept Doncaster ahead.
Right winger Doug Flockhart raced in for a try on the hour mark and McIlwaine converted, which gave Doncaster a bonus point for a fourth try, but the match was far from over.
Esher kicked a penalty and then scored a second try through prop Robin Boot which was converted and closed the gap to 20-29.
They pushed hard in search of at least a losing bonus point but the Knights kept them out.
n The Knights have declared Saturday’s visit of London Welsh ‘bring a friend for free day’ at Castle Park.
Anyone purchasing a single ticket for the game is entitled to free admittance for a friend.
Season ticket holders can take two friends by using vouchers B and C in their books.