Ding Junhui of China reacts during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)

Ding Junhui of China reacts during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)

Ding Junhui (L) of China competes during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)

Ding Junhui of China competes during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)

Ding Junhui of China reacts during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)

Ding Junhui of China competes during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)

Ding Junhui of China competes during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)

Ding Junhui of China competes during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)

Ding Junhui of China competes during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)

Ding Junhui of China reacts during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan) 10

Mark Selby of England competes during the first session of final against Ding Junhui of China at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan) 11

Mark Selby of England competes during the first session of final against Ding Junhui of China at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan) 12

Mark Selby of England competes during the first session of final against Ding Junhui of China at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan) 13

Mark Selby of England competes during the first session of final against Ding Junhui of China at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan) 14