What former Rangers player is the only pitcher in Major League history to appear in all 7 games of a single World Series?

Hint.....he didn't do it while playing for the Rangers.                                                                                                                                                                            

Can someone please explain to me why FC Dallas lost their playoff series?   In the paper today, it said the series was a 2 game aggregate series.  Well, both teams won a game and the combined score of the 2 games was 3-3.  And if this series was part of the MLS Championship then what in the heck was that game a few weeks ago against the Revolution or the game that LA sans Beckham played here back in July?