Arsenal could consider selling teen prodigy Ethan Nwaneri during the summer transfer window, with speculation suddenly tipping towards a future away from the Emirates Stadium. Nwaneri created history in 2022 when he became the youngest player to appear for Arsenal in any competition, as well as in the Premier League for any club, at the age of 15 years and 181 days. Both records have since been broken by Max Dowman. But the winger’s career has stalled this season. With limited chances in the first half of the campaign and Dowman coming up behind him, Nwaneri wound up joining Olympique Marseille on loan in January, only for things to take a negative turn when manager Roberto de Zerbi soon left the club. Nwaneri has struggled under successor Habib Beye—the former Aston Villa and Newcastle United fullback—and has started just once in Ligue 1 since the start of February.…