Yahoo Sports reports: The San Antonio Spurs delivered a stunning first-half performance Wednesday night, taking complete control of Game 4 of the NBA Finals against the New York Knicks and silencing the Madison Square Garden crowd with an offensive explosion. After falling behind 2-1 in the series, the Spurs played with urgency from the opening tip and raced to a commanding 41-22 lead after the first quarter. It marked the fourth consecutive game in the series that San Antonio won the opening period, but this one was particularly dominant.