What is Matthias Jaissle?
{{Infobox football biography | name = Matthias Jaissle | image = FC RB Salzburg gegen SK Sturm Graz (24. Oktober 2021) 27.jpg | caption = Jaissle in 2021 | height = 1.86m | birth_date = {{birth date and age|1988|4|5|df=y}} | birth_place = [[Nürtingen]], [[West Germany]] | currentclub = [[FC Red Bull Salzburg|Red Bull Salzburg]] (head coach) | clubnumber = | position = [[Defender (association football)|Defender]] | youthyears1 = {{0|0000}}–2001 | youthclubs1 = TSV Neckartailfingen | youthyears2 = 2001–2006 | youthclubs2 = [[VfB Stuttgart]] | years1 = 2007–2014 | clubs1 = [[TSG 1899 Hoffenheim|1899 Hoffenheim II]] | caps1 = 8 | goals1 = 0 | years2 = 2007–2014 | clubs2 = [[TSG 1899 Hoffenheim|1899 Hoffenheim]] | caps2 = 60 | goals2 = 2 | totalcaps = 68 | totalgoals = 2 | nationalyears1 = 2009 | nationalteam1 = [[Germany national under-21 football team|Germany U-21]] | nationalcaps1 = 1 | nationalgoals1 = 0 | manageryears1 = 2014–2017 | managerclubs1 = [[RB Leipzig]] (U17) | manageryears2 = 2017–2019 | managerclubs2 = [[Brøndby IF]] (Assistant) | manageryears3 = 2019–2021 | managerclubs3 = [[FC Red Bull Salzburg|Red Bull Salzburg]] (U18) | manageryears4 = 2021 | managerclubs4 = [[FC Liefering]] | manageryears5 = 2021– | managerclubs5 = [[FC Red Bull Salzburg|Red Bull Salzburg]] }} '''Matthias Jaissle''' (born 5 April 1988<ref>{{cite web | url = http://www.worldfootball.net/spieler_profil/matthias-jaissle | title = Matthias Jaissle | publisher = worldfootball.net | accessdate = 23 December 2021}}</ref>) is a German [[Association football|football]] manager and former player who played as a [[Defender (association football)|defender]]. In 2021 he became the manager of [[FC Liefering]] and then manager of [[FC Red Bull Salzburg|Red Bull Salzburg]]. He played for [[TSG 1899 Hoffenheim|1899 Hoffenheim]] when they were promoted to [[2. Bundesliga]] and to [[Bundesliga]] the following season. ==Managerial career== On 3 April 2017 he became assistant of manager Alexander Zorniger of [[Brøndby IF]] starting from the summe