Centre back Timo Baumgartl is set to return from a coronavirus infection as Union Berlin aim to rebound from their first Bundesliga season defeat on Sunday at VfB Stuttgart. Baumgartl missed Union’s 1-0 win at Sweden’s Malmö in the Europa League on Thursday but coach Urs Fischer said on Saturday that he is available again after negative tests. Union led the Bundesliga into the weekend programme despite losing for the first time last Saturday, 2-0 at Eintracht Frankfurt. Fischer suggested he would make a few changes to his starting 11, saying “I won’t rule out that there will be fresh players” …