China Central Television and Chinese hurdler Liu Xiang have attracted controversy after it was learned that CCTV had prepared for Liu's crash at the London 2012 Olympic Games.

However, experts said it is normal for broadcasters to make plans for such eventualities at important sports events, especially since Liu's coach had announced before the race that Liu had suffered injuries.

During a seminar on Wednesday, Sha Tong, head of the CCTV anchor team for the Olympic broadcast, said that anchor Yang Jian had known about Liu's serious injury through unofficial channels before the race, according to a report on Thursday by China Youth Daily.