“The Axe Murderer”  Wanderlei Silva returned to the ring on Saturday in an exhibition bout in Sao Paulo, Brazil against former Brazilian boxing champion Acelino Freitas, but it didn’t look like an exhibition bout.  The fight kept a furious pace for as long as it lasted. Silva was repeatedly warned by the referee about fouls, including blatant headbutts. The referee disqualified Silva in there fourth round and all.