Phoenix Suns guard Devin Booker has been ruled out of Wednesday's Christmas night home game against the Denver Nuggets because of a groin strain. It would be the third straight game Booker has missed after suffering the injury in the third quarter of a defeat last week to the visiting  Indiana Pacers. The Suns lost both games he missed.   Several other stars are listed as questionable for Christmas Day, including Los Angeles Lakers stars Anthony Davis (shoulder) and LeBron James (injury management). Davis and James both played in Monday night's home loss to the Detroit Pistons. Jamal Murray, who missed the Nuggets' home win over the Suns on Monday, is listed as questionable for Wednesday's rematch due to an ankle injury. Jayson Tatum is listed as questionable for the Boston Celtics' game against the visiting  Philadelphia 76ers with an illness that also kept him out of a loss Monday at the ...