(Adds quotes) BERNE, March 7 (Reuters) - Tottenham Hotspur trounced a sorry Inter Milan 3-0 in the Europa League on Thursday while last year's European champions Chelsea were humbled 1-0 by Steaua Bucharest after being stung by a Raul Rusescu penalty. Big-spending Russian pair Zenit St Petersburg and Anzhi Makhachkala failed to manage a goal between them. Zenit lost 2-0 to late goals at FC Basel and Anzhi were held 0-0 by Newcastle United. ... More...