John York on Tuesday reiterated ownership's stance that Mike Singletary's job is safe despite the 49ers' disappointing start.

Asked if Singletary will remain the team's coach for the rest of the season, York responded: "Yes, he's our coach."

York spoke to a handful of reporters at a charity event in London, where players made a goodwill visit to schoolchildren in advance of the 49ers' game against the Denver Broncos on Sunday at Wembley Stadium.

The brewing cloud over Singletary, however, followed him overseas. After a loss to the Carolina Panthers on Sunday, which dropped the 49ers to 1-6, Comcast SportsNet Bay Area reported that York and his son, team president Jed York, were displeased with the coaching in the 23-20 defeat. Comcast quoted an unidentified source as saying there were "some grumbles" from both John and Jed.

"I'm not sure why somebody would have said that," John York said, when asked about the report. "We were grumbling because we lost the game. I think we grumble anytime we lose the game."

York, echoing Singletary's persistent mantra, said the 49ers can turn things around quickly if they can avoid silly mistakes such as turnovers.

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