Here's why (from http://www.sportismadeforbetting.com...its-first.html)
Quotes from Tennisform, a site which runs an excellent injury and information ticker (subscription required).
17:58 Azarenka has drifted pre-match to 1.31 from 1.07 [125k traded]. EDIT: Azarenka went off at 1.43, with 168k traded, and continued to drift out to 1.65 before a ball was struck.
19:47 McHale advanced when Azarenka decided to quit with a thigh injury early in the second set. The Belarus drifted alarmingly prior to the match, and continued to drift throughout the match, and despite building a 6/2 *2/1 lead, she was still considered the underdog on BetFair, where the betting patterns were not unlike the infamous Davydenko/Vassallo match in Sopot. (Radio commentaries) "Azarenka wasn't making any mistakes in the first set but she played the match with her thigh strapped and called for the trainer at *2-1 in the second set. She began walking gingerly in the second set and decided to let everyone in the stadium know she was hurt." The match will be investigated and quite a few bookmakers have said they will withhold payment until it is cleared up. It's not the first time that Azarenka has been involved in a suspicious looking match. One or two bookmakers had cause for concern after her matches against Oprandi in Amelia Island in 2007, and Govortsova in Hobart, 2008. McHale 2/6 2/2 ret.
Quotes from Tennisform, a site which runs an excellent injury and information ticker (subscription required).
17:58 Azarenka has drifted pre-match to 1.31 from 1.07 [125k traded]. EDIT: Azarenka went off at 1.43, with 168k traded, and continued to drift out to 1.65 before a ball was struck.
19:47 McHale advanced when Azarenka decided to quit with a thigh injury early in the second set. The Belarus drifted alarmingly prior to the match, and continued to drift throughout the match, and despite building a 6/2 *2/1 lead, she was still considered the underdog on BetFair, where the betting patterns were not unlike the infamous Davydenko/Vassallo match in Sopot. (Radio commentaries) "Azarenka wasn't making any mistakes in the first set but she played the match with her thigh strapped and called for the trainer at *2-1 in the second set. She began walking gingerly in the second set and decided to let everyone in the stadium know she was hurt." The match will be investigated and quite a few bookmakers have said they will withhold payment until it is cleared up. It's not the first time that Azarenka has been involved in a suspicious looking match. One or two bookmakers had cause for concern after her matches against Oprandi in Amelia Island in 2007, and Govortsova in Hobart, 2008. McHale 2/6 2/2 ret.