World champion Max Verstappen led final practice for the season-opening Bahrain Formula One Grand Prix on Saturday while big rival Lewis Hamilton showed improvement in sixth. Red Bull’s Verstappen, who had also dominated the second session the previous day, posted 1 minute 32.544 seconds on the 5.412-kilometres Bahrain International Circuit. Ferrari’s Charles Leclerc was less than one-tenth back and Sergio Perez third in the second Red Bull. New Mercedes driver George Russell, Carlos Sainz in the second Ferrari and seven-time world champ Hamilton followed. Hamilton was only .577 behind Verstap…