When did the professional boxer who John Watson lost to hold the WBA lightweight title?
John Watson (boxer): John Watson (Born 9 June 1983) is a British lightweight boxer, based in Liverpool, Merseyside, United Kingdom. John Watson (boxer):  He has fought for the British lightweight title on two occasions, losing to Gavin Rees and Anthony Crolla. Anthony Crolla:  He held the WBA lightweight title from 2015 to 2016, and the British lightweight title from 2011 to 2012.
2015 to 2016