Guerrero knocked down, but wins split decision over Martinez (The Associated Press)
Robert Guerrero rebounded from a fourth-round knockdown and won a split decision over Aron Martinez in a welterweight bout Saturday. The verdict for Guerrero (33-3-1) was booed by a portion of the crowd after the former four-division champion rallied in the second half of the 10-round bout to beat Martinez (19-4-1), a 20-to-1 underdog in some betting venues. Despite two losses in his last three fights, Guerrero had much more trouble than expected against Martinez, a local journeyman who has lost three of his last four.