Widnes coach Denis Betts has acknowledged that his team did not play at the best after losing 28-20 at Salford at the weekend.
The Vikings could not back up their fine win over Leeds last week, and Betts was obviously disappointed by his team’s display.
“They came out the blocks pretty quickly and we knew it would be a physical challenge and we didn’t match it,” he said, according to BBC Sport.
“They have backed up a great performance last week with another one today. It’s very difficult for us when we make the start we did.
“There was one stage in the second half where we could have made a difference, but we couldn’t get what we we needed to be. We ran out of steam in the end.”