Although Harry Redknapp's team remain five points adrift of safety with fixtures against Tottenham, West Ham and Manchester City approaching, Wright-Phillips, who was signed by Chelsea from City for £21million in 2005, now believes Rangers will beat the drop.
"It makes us think that if Chelsea struggled to break us down, with the way we played against them, then a lot of teams will," said Wright-Phillips. "We've never stopped believing we could escape, ever since we got in this situation.
"We still believe it strongly and it was a great relief to get that result at Stamford Bridge. Away from home we haven't been the best and we've dropped a lot of points, so this is something we have to consolidate now.
"We tried to frustrate Chelsea and catch them on the break, and we did that well."