Tennis-Murray improves London chances with Valencia win

* Scot fights back to beat Anderson * Murray to play Ferrer in last four * Ferrer thrashes qualifier Bellucci (Adds Ferrer win) MADRID, Oct 24 (Reuters) - Andy Murray collected more points to aid his World Tour finals qualification bid when he fought back from a set down to beat Kevin Anderson 6-7(3) 6-4 6-4 in the quarter-finals of the Valencia Open on Friday. A wild card at the Spanish indoor hard court event, which he won in 2009, Murray is eighth in the race to secure a berth at the season-ending tournament in London. The Scot will play top-seeded Spaniard David Ferrer, who is also eyeing a place at the Tour finals, on Saturday for a place in Sunday's showpiece. Ferrer, chasing a fourth Valencia trophy after triumphs in 2008, 2010 and 2012, swept past Brazilian qualifier Thomaz Bellucci 6-1 6-2. Friday's remaining two quarter-finals feature unseeded Frenchman Jeremy Chardy against Spanish wildcard Pablo Carreno Busta and an all-Spanish clash between unseeded pair Tommy Robredo and Pablo Andujar. Murray is attempting to qualify for the Tour finals for a seventh consecutive year and won the Vienna title last week when he came from a set down to beat Ferrer in the final. (Reporting by Iain Rogers, editing by Toby Davis)