Washington Nationals first baseman Josh Bell (knee) is back at first base and is hitting cleanup on Thursday against Arizona Diamondbacks right-hander Zach Davies. Bell left the game early on Wednesday with knee tightness, but his MRI results came back clean and he won't miss any game action. The 29-year-old switch-hitter is off to a good start in his second season in D.C., hitting .354 (17-for-48) with two home runs, two doubles, 11 RBI and 10 runs scored in 58 plate appearances over 14 ...