Mindless arsonists torched a stand at the home of Blackbrook Rugby Club.
Firefighters were called to the club’s Boardmans Lane base shortly after 1.30am on Sunday (August 31) after Merseyside Fire and Rescue Service’s control room received six calls in a matter of minutes.
Crews from St Helens and Whiston used a main branch hose to tackle the blaze and had extinguished the flames about 45 minutes later.
They remained at the scene until shortly after 3.15am.
Fire investigators believe the blaze was sparked by an arson attack.
Watch manager Ian Mullen said: “The wooden stand at the rugby club, which measured around 25 metres long by around five metres wide and had a pitched roof, was severely damaged by this fire.
“The fire also spread to the clubhouse, with heat slightly damaging around 10 metres of guttering and cracking several windows.
“Firefighters worked quickly at the scene to prevent the fire damaging anything else.”
Mr Mullen, Merseyside Fire and Rescue Service’s arson reduction boss, added: “Luckily no-one was injured this time but fires started deliberately can pose a risk to people - including those who start the fire.
“We investigate every fire we are called to and pass information to the police to help bring those who commit arson to court and to face the consequences of their crimes.”
Anyone with information about the blaze can contact police on 101 or Crimestoppers, in confidence, on 0800 555 111.