Bayern Munich coach Julian Nagelsmann has told his World Cup bound players to give their all in their final Bundesliga game at bottom club Schalke on Saturday because the right focus would also help them prevent injuries. Bayern enter the last game before the two-month World Cup and winter break four points clear at the top of the table and are determined to keep this advantage with full points. Led by seven of their players in the German squad, many Bayern players will be at the November 20-December 18 tournament in Qatar. Nagelsmann said on Friday that his men should not consider only a half…