Top-ranked Carlos Alcaraz will face No. 9 Felix Auger-Aliassime in the Swiss Indoors semifinals after both advanced in straight sets Friday. Alcaraz, who won the U.S. Open last month, clinched a 6-3, 6-4 win against fellow Spaniard Pablo Carreno Busta with a service winner. “It is difficult to play against a friend like Pablo,” the…