wˌaɪlst kəmpˈiːɾɪŋ fɔːɹ bˈɛldʒəm, ɹˈɜːʃ ɪnˈɪʃəli tɹˈeɪnd wɪð ˌælɪɡzˈændɚɹ ˌoʊˈɛs ænd lˈɑːɹz bˈɜːdʒɚ, hˌuː hæd sˈɪmɪlɚli bˌɪn dɹˈɑːpt baɪ ðə noːɹwˈiːdʒən bˈaɪəθlɑːn ɐsˌoʊsɪˈeɪʃən, ɪn ɐ tɹˈeɪnɪŋ ɡɹˈuːp ðeɪ hjˈuːmɚɹəsli nˈɪkneɪmd ðə "fˈɛskslɑːɡ" noːɹwˈiːdʒən fɔːɹ "fˈɪʃ wˈeɪst".
Whilst competing for Belgium, Rösch initially trained with Alexander Os and Lars Berger, who had similarly been dropped by the Norwegian Biathlon Association, in a training group they humorously nicknamed the "Feskslog" - Norwegian for "fish waste".