Sam Kerr scored a late header and became the first Australian—and only the second Chelsea player—to reach 20 Champions League goals as Chelsea came from behind to beat Wolfsburg 2-1 and advance directly to the Women's Champions League quarterfinals.Alexandra Popp had fired Wolfsburg ahead after a poor clearance by Livia Peng, but Lucy Bronze levelled before half time and later won possession to find Johanna Rytting Kaneryd, whose cross Kerr met with the winner.Kerr said she is building fitness after a long rehabilitation and a calf problem, Chelsea's win removes a playoff tie under the competition's new single league-phase format and the team return to Women's Super League action on Jan 11.