Which ODI player has 99.8 average in his career and in last match of his career he was out on 0 ? As if he had just one score in his last match then his average would have became 100.
No player with a reasonable number of innings has an ODI average remotely close to 99, or even above 70.
You have misheard or misremembered the details of such a statement being made about Don Bradman, whose Test average was 99.94.
He required only four runs from his last innings to achieve exactly 100 average, but instead was bowled for a two-ball duck.