Keeneland January's Leading Covering Sireshttp://cs.bloodhorse.com/blogs/market-watch/archive/2017/01/18/Keeneland-January_2700_s-Leading-Covering-Sires.aspxFather and son Pioneerof the Nile and American Pharoah topped the leading covering sire ranks by gross and average at the five-day Keeneland January horses of all ages sale that ended Jan. 13.enCommunityServer 2007.1 (Build: 20917.1142)