Actor Michael Madsen has been sued by his ex-wife for buying a top-class horse instead of paying child support, according to reports. The Sin City star allegedly bought the thoroughbred animal despite being three months behind in child support payments. Now his former wife, Jeannine Bisignano, is preparing legal action - insisting he owes around $38,000 (GBP19,000) in support for his sons Christian, 17, and Max, 13. Madsen, 49 - who also has three sons by his current wife, De Anna Morgan - allegedly bought the race horse for Morgan while in Ireland, and had it shipped to their Malibu home. But a source tells the New York Daily News, "You don't buy a horse if you're broke." Madsen's manager refused to comment.