​New Portsmouth signing Rocco Shein is untested in English football – can he adapt?The Championship will provide a new experience for the 23-year-old, who joined Pompey from Norwegian side Fredrikstad on Tuesday.AdvertisementAdvertisementAdvertisementHe was, however, given minutes in both legs of Fredrikstad’s Europa Conference League play-off against Premier League club, and eventual winners, Crystal Palace last season.And journalist Martin Bjerke thinks that shows the Estonia midfielder’s capabilities.”The level is obviously a bit above but I think he proved against Crystal Palace that he’s able to play at a high level,” Bjerke said.”He is in really good physical shape. I think he won all the pre-season testing stuff and I think he runs the most [for Fredrikstad] in a match, so I think he will adapt really well to the league.”Listen to the full analysis above or on BBC Sounds here[BBC]Explore more Portsmouth content on BBC SoundsLatest Portsmouth news, analysis and fan views