Ashleigh Bartys decision to pull out of the Indian Wells tournament has cast doubt over her involvement in the season ending WTA Finals and given a sliver of hope that US Open singles champion Emma Raducanu might see off her breakout year in style.The world No 1 is one of three players to have already qualified for the finale, which will take place in Guadalajara, Mexico in November.Last week the WTA announced that Barty