The former Blues forward made 77 appearances at Stamford Bridge, scoring 25 goals, before joining Fenerbahce last September.
Batshuayi has clearly been keeping a close eye on the Women's World Cup, and in particular, former teammate Reece James' sister, Lauren.
James shone as England thrashed China 6-1 to book their place in the last-16 where they will face Nigeria.
The 21-year-old scored twice and could have had a hat-trick, had VAR not ruled Lucy Bronze as interfering when coming back from an offside position.
Despite not starting the first game, James has two goals, and three assists at the tournament.
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Reacting to James' sublime second goal, Batshuayi tweeted: "Damn Lauren's got a better finish than me bro @ReeceJames", followed by a m and two laughing emojis.
His hilarious post instantly got Chelsea fans replying, who loved it.
One simply wrote: "Michy", with three crying emojis.
A second wrote: "Classic Michy."
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Another added: "MICHY I LOVE U"
With a fourth replied: "MICHY UR LITERALLY ONE OF MY IDOLS"
She now becomes just the third player on record (since 2011) to be directly involved in five goals in a single Women's World Cup match.
As well as two from James, Alessio Russo, Lauren Hemp, Chloe Kelly and Rachel Daly were also on target in the stunning victory.