Arsenal great Sol Campbell has held talks over the England U21 job.
Campbell, who won 73 caps for the Three Lions, previously bossed Macclesfield and Southend.
Boothroyd is leaving this summer when his contract expires after presiding over a second successive group-stage exit from the Euros.
Prospective candidates have been encouraged to apply as the FA conducts a 'formal open process' to appoint the new boss.
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