PHOENIX — Well, they said going into the Western Conference finals that the Phoenix Suns had the better bench. Who knew their second unit could be so much better than the Lakers’ starters? The Suns’ backups went on an 18-3 run early in the fourth quarter and turned the game in Phoenix’s favor. Channing Frye and Leandro Barbosa scored 14 points apiece to spark the Suns in the fourth and enable them to tie the best-of-7 series, 2-2. Kobe Bryant scored 31 of his 38 points in the first three quarters and was powerless to halt the Suns. Amare Stoudemire led the Suns with 21 points, but was overshadowed by the backups.