And, although he is yet to score this campaign, Roberts thinks Bony's record against top-four sides could make him a good choice for boss Garry Monk to start against Chelsea.
"Last season Bony was arguably the find of the season with 16 goals in 34 appearances, I watched him closely in a friendly vs Reading when he first arrived at Swansea and his movement was outstanding," Roberts wrote on his website.
"Strength, power, intelligence and excellent finishing, Swansea would have feared big money bids for him during the transfer window; this season has not been as straightforward for him.
"Wilfred had a great campaign last season but has yet to open his goal scoring account for this season.
"He hasn’t found the net against Chelsea in his career but he did manage to score four goals against the top four last season."
The 25-year-old was linked with a move to Liverpool this summer but the Swans did their utmost to ensure the Ivorian stayed at the Liberty Stadium after his impressive debut campaign.
Monk's side are currently second in the Premier League after three games, having won all three of their opening matches. Only this weekend's opponents Chelsea have done the same.