What is Frank de Boer?
{{Infobox football biography | name = Frank de Boer | image = FrankBoer.JPG | image_size = | caption = De Boer as manager of [[AFC Ajax|Ajax]] in 2011 | full_name = Franciscus de Boer<ref name=TFF>{{cite web |url=https://www.tff.org/Default.aspx?pageId=526&kisiId=29985 |title=Franciscus de Boer |publisher=Turkish Football Federation |access-date=22 January 2020}}</ref> | birth_date = {{birth date and age|1970|5|15|df=y}}<ref name=BDFutbol>{{cite web |url=https://www.bdfutbol.com/en/l/l901.html |title=Frank de Boer: Franciscus de Boer: Manager |publisher=BDFutbol |access-date=5 May 2018}}</ref> | birth_place = [[Hoorn]], Netherlands<ref name=BDFutbol/> |height=1.79 m<ref>{{Cite web|url=https://www.worldfootball.net/player_summary/frank-de-boer/|title=Frank de Boer|website=worldfootball.net|access-date=14 October 2023}}</ref> | position = [[Defender (association football)|Defender]] | currentclub = [[Al Jazira Club|Al Jazira]] (manager) | youthyears1 = 1984–1988 | youthclubs1 = [[Ajax Youth Academy|Ajax]] | years1 = 1988–1999 | clubs1 = [[AFC Ajax|Ajax]] | caps1 = 328 | goals1 = 30 | years2 = 1999–2003 | clubs2 = [[FC Barcelona|Barcelona]] | caps2 = 144 | goals2 = 5 | years3 = 2003–2004 | clubs3 = [[Galatasaray S.K. (football)|Galatasaray]] | caps3 = 15 | goals3 = 1 | years4 = 2004 | clubs4 = [[Rangers F.C.|Rangers]] | caps4 = 15 | goals4 = 2 | years5 = 2004–2005 | clubs5 = [[Al-Rayyan SC|Al-Rayyan]] | caps5 = 16 | goals5 = 5 | years6 = 2005–2006 | clubs6 = [[Al-Shamal Sports Club|Al-Shamal]] | caps6 = 1 | goals6 = 0 | totalcaps = 519 | totalgoals = 43 | nationalyears1 = 1990–2004 | nationalteam1 = [[Netherlands national football team|Netherlands]] | nationalcaps1 = 112 | nationalgoals1 = 13 | manageryears1 = 2006–2010 | managerclubs1 = [[AFC Ajax|Ajax]] (youth) | manageryears2 = 2008–2010 | managerclubs2 = [[Netherlands national football team|Netherlands]] (assistant) | manageryears3 = 2010–2016 | managerclubs3 = [[AFC Ajax|Ajax]] | manageryears4 = 2016 | managerclubs4 = [[Inter Milan]] | manageryears5 = 2017 | m