Nicolas Pepe missed Arsenal's win at Wolves as his wife entered labour.
Before kickoff, the club announced the news on social media, writing: "Nicolas Pepe misses today's game due to personal reasons, as his wife has gone into labour."
Gooners on social media had questioned why the Ivorian star had not been put in the starting XI when it was announced earlier this afternoon.
But congratulations poured in after the news was announced.
Arsenal won 2-0 on Saturday via goals from Alexandre Lacazette and Bukayo Saka.