Citing illness, the band posted on their website:
DEF LEPPARD has postponed the remaining dates on their Winter 2016 tour due to illness. All shows from Feb. 2 (San Antonio, TX) through Feb. 17 (Allentown, PA) will be rescheduled including the previously postponed dates in Greensboro, NC (Jan. 27) and Orlando, FL (Jan. 30).
Details on new dates will be announced soon. Tickets will be honored on the rescheduled dates.