Brown ran in a first-half hat-trick as part of an eight-try romp, earning the Robins their first away win of the Super League season but Rovers' blossoming star still has areas he needs to develop, according to Sandercock.
"Obviously you have to be happy with any player that scores three tries," the coach said after his side's 42-22 triumph in the capital. "If Alex keeps doing that week in, week out it will be difficult to drop him. But there are still a lot of things he needs to learn, and we will sit down with him, watch the tapes and work on those things."
He added: "Naturally, I am pleased with the result. There was a bit of a lack of concentration in the second half, but we corrected that.
"Back-to-back wins builds confidence, and we can work on this."
Broncos coach Tony Rea said: "We had an inability to build pressure in the first half. We made too many mistakes and that held us back.
"I thought we were in with a shout in the second half, but it was not to be.
"We just need a home win - the players need it and the fans need it.
"We have to pull together and stay strong."
- Sports & Recreation