the six-time olympic gold medallist is currently in rio de janeiro , acclimatising ahead of next year 's olympic games in the brazilian capital , and will compete in the ` mano a mano ' 100-metre challenge on sunday that the jamaican sprinter ran the 200 metres in 19.19 sec at the 2009 world championships in berlin and bolt is confident he could shave two tenths off that time despite clocking a disappointing 20.20 sec at the utech classic in his home country last saturday .