WASHINGTON – Roger Clemens was acquitted Monday on all charges that he obstructed and lied to Congress in denying he used performance-enhancing drugs to extend his long career as one of the greatest and most-decorated pitchers in baseball history.

Fierce on the pitching mound in his playing days, Clemens was quietly emotional after the verdict was announced. “I’m very thankful,” he said, choking up as he spoke. “It’s been a hard five years,” said the pitcher, who was retried after an earlier prosecution ended in a mistrial.

This case was lengthy, but the deliberations were relatively brief. Jurors returned their verdict after less than 10 hours over several days. The outcome ended a 10-week trial that capped the government’s investigation of the pitcher known as “The Rocket” for the fastball that he retained into his 40s. He won seven Cy Young Awards, emblematic of the league’s best pitcher each year in a 24-year career with the Red Sox, Yankees, Blue Jays and Astros.