Racing PositionsNats catcher Avila, 34, will retire at end of season5YNats put 10 on IL before opener, win on walk-off5YNats add backup catcher Avila on 1-year deal6YTwins finalize deals for Pineda, Avila7YSources: Twins, catcher Avila reach $4.25M deal7YDiamondbacks C Avila off IL, to play vs. Braves7YD-backs' Avila hurt on home run trot, put on IL7YLaw: Re-drafting the first round of the 2008 MLB draft8YKeith LawBaserunning gaffe robs Marrero of 1st homer8YOlney: Nobody may want an offseason do-over more than Scott Boras8YBuster Olney
