LONDON (AFP) - Chelsea won at home for only the second time in eight Premier League football matches as they held off London rivals Arsenal 2-1 at a snowy Stamford Bridge on Sunday.

Juan Mata gave Chelsea a sixth- minute lead before Frank Lampard, whose Chelsea future remains uncertain, made it 2-0 from the penalty spot 10 minutes later after Ramires was brought down by Arsenal goalkeeper Wojciech Szczesny.

But Theo Walcott, fresh from signing a new Arsenal contract in midweek, brought the Gunners back into the match in the 58th minute when he outpaced Branislav Ivanovic and then shot powerfully past Petr Cech.

Arsenal pressed for an equaliser but Chelsea clung on to all three points.

This result saw Chelsea, booed off along with manager Rafael Benitez after squandering a 2-0 lead in a 2-2 draw at home to Southampton in midweek, remain third and Arsenal stay sixth in the table.