Nationals starting pitcher Stephen Strasburg struggled through the worst start of his career Friday in an 8-5 oss to the Marlins.

Strasburg was given an early 3-0 lead in the top of the first, but he gave that lead right back in the bottom half. The Marlins struck for five runs on four hits, as Strasburg walked three of the first four batters he faced.

Strasburg ultimately gave up seven runs on five hits and four walks in two innings, the most earned runs he has allowed in his major-league career. Strasburg's ERA skyrocketed from 2.45 to 2.99, while he fell to 5-7 in 19 starts.

Strasburg's next start has yet to be determined, as the Nationals have not set their rotation for after the All-Star break.