Aug 07, 2006 4:52 PM EST

Livan Hernandez was traded by the Nationals to the Diamondbacks on Monday for a pair of minor league pitchers.

Hernandez, 31, is 9-8 this season with a career-high 5.34 ERA in 24 starts. The right-hander has been hampered by a sore knee for most of the season but had a strong outing Sunday, allowing two runs over seven innings at San Diego.

Via AP