The England international started his first match since January as he featured for Arsenal’s Under-21 side against Blackburn Rovers on Friday night.
Walcott played the entire first half at Boreham Wood FC’s Meadow Park as he closes in on a return to first-team action.
And the 25-year-old posted the picture above on Instagram after the game and wrote: “Felt great to be back on the pitch after a long 9 months.
“Thanks to all the @arsenal fans for incredible support and all the Arsenal Medical Team.”
Arsenal host Hull City in the Premier League at Emirates Stadium on Saturday.
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