By Clare Lovell and William Schomberg LONDON (Reuters) – Chelsea fans arriving on Sunday for the Blues’ first home match under government control said they were worried that an era of glittering success might be over after owner Russian billionaire Roman Abramovich was hit with an asset freeze last week. Chelsea are in a state of limbo after the British government sanctioned Abramovich and other Russian businessmen as it sought to increase the isolation of President Vladimir Putin for his decision to invade Ukraine. “What a ride we had with Abramovich,” Claire Mitchell, a season ticket-holder …