KR captain Michael Dobson was left out due to a hamstring win and Craig Hall deputised with a great performance. Rovers stand-off Travis Burns also performed well but succumbed to a shoulder injury at the start of the second period.
"It was a pretty special performance today. To come through a lot of adversity like that is very pleasing," explained Sandercock. "Michael trained really well all week and he was fine but at the end of training yesterday he pulled up with that hamstring. Things were going well and then he pulled up but it was good to get a win without Michael Dobson."
He added: "Obviously Michael won't be playing on Monday (against Wigan), and we'll have to assess him during the week. Travis hurt his shoulder and he doesn't look too good for Monday either, again we'll have to assess the damage.
"Craig Hall did very well today, as did 16 of his other mates. For Craig to jump in there without having trained in the halves all week and put in a performance like that, it's pleasing."
Black and Whites Head Coach Peter Gentle admitted his side lacked direction and he revealed the plight of injured Andy Lynch.
"I got the wake-up call from Lynchy saying he had been vomiting all night. He wasn't able to play so the day didn't start well," revealed Gentle.
"Today we just had no direction whatsoever. We lacked experience, we tried to simplify as much as we could to get through but we've got no halves in the club available at the moment to steer us around.
"There were a lot of errors today that were unforced and it was extremely disappointing, we just can't find our way around the park at the moment. We've got Wakefield on Monday and we better come up with some answers pretty quickly.
"We're struggling; our execution let us down today. We've been looking for over 12 months (to get a scrum-half) in and it's proving very difficult. Our eyes and ears are always open."