London coach Danny Ward says his side showed enough in the defeat to Castleford to suggest they will stay up.
The Broncos led 6-4 at half time at The Jungle, before going down 20-16.
They remain two points adrift at the bottom of the Super League table with four games to play – though crucially, three of those come against teams just above them in the ladder.
Ward said: “I’m obviously disappointed with the result.
“We put ourselves in a good position at half-time and it just got away from us in a 10-to-15-minute period in that second half. They ramped it up a little bit and came down our edges with some tempo and scored a couple of tries.
“With our errors and the penalties we gave away we just gave ourselves too much to do against a very good side in Cas.
“But we showed enough fight, resilience and toughness to leave the place quite happy, knowing that we’re in a decent spot and we’ll be alright.”