For years, Robert Guerrero was among the top fighters in his division, whether it was during his two reigns with a featherweight world title between 2006 and 2008 or when he held a junior lightweight world title in 2009 before moving up in weight.As a lightweight and welterweight, he also made a name for himself, winning interim belts in both weight divisions and facing some of the best opposition around and usually engaging in entertaining fights -- with Joel Casamayor, Michael Katsidis, Selcuk Aydin, Andre Berto and the one and only Floyd Mayweather.However, since beating Berto by decision in a memorable battle in November 2012, Guerreros record has been spotty. He is 2-3 since, with lopsided decision losses to Mayweather and Keith Thurman in welterweight world title bouts and a slightly more competitive decision loss to Danny Garcia for a vacant welterweight belt on Jan. 23, his most recent outing.The two wins came in a hellacious slugfest with Yoshihiro Kamegai and a decision against journeyman Aron Martinez, who dropped Guerrero in the fourth round and lost a split decision in a fight in which many thought Guerrero received a gift from the judges.Now Guerrero (33-4-1, 18 KOs), 33, of Gilroy, California, still with world title aspirations, takes a bit of a step back in terms of his opposition level in an effort to get back on track. He will face unknown David Emanuel Peralta (25-2-1, 14 KOs), who has faced abysmal opposition and will be fighting outside of Argentina for the first time, on Saturday (Spike, 9 p.m. ET/PT) in the 12-round main event of a Premier Boxing Champions tripleheader at the Honda Center in Anaheim, California.There also are two other scheduled 10-round bouts on the telecast. Mexican brawler Alfredo Angulo (24-5, 20 KOs), 33, will face countryman Freddy Hernandez (33-8, 22 KOs), 37, in the co-feature, and 2012 U.S. Olympian Terrell Gausha (18-0, 9 KOs), 28, of Cleveland, will face Steve Martinez (16-2, 13 KOs), 26, of New York City, in the junior middleweight opener.Peralta, who turns 34 on Wednesday, is the epitome of a hand-picked opponent brought in to theoretically make Guerrero look good.Still, Guerrero knows he cannot merely rely on the fact that Peralta, on paper at least, appears to be in way over his head.I got a chance to size him up, Guerrero said at the final news conference Thursday. I saw how tall he is. Picking my spots -- seeing where I have to go. After looking at him, I know hes coming to fight. Im expecting a war. Like all Argentine fighters, I know hes got that hunger to prove hes worthy of this big opportunity and make the most of it.Im focused and the fans can expect to see me leave everything in the ring like always. Ive seen some tape on him. Hes one of those guys that is durable, a durable tall, lanky guy. His height is going to help him. I am expecting a tough fight, for sure. This is like a world title shot for him. I dont know what he is going to bring to the table, and that is exciting for me.Peralta has not boxed in 15 months and is geared up for by far the most significant opponent of his 11-year professional career.This is the biggest fight of my career. It is very important, Peralta said. I have to go out there and put on a great show. I want to go down the same path as [successful countrymen] Marcos Maidana and Lucas Matthysse. They were given great opportunities in their careers and took advantage of them. I am going to take advantage of this opportunity.This is an opportunity to learn. Every fight and fighter is different. I have watched Guerrero fight, but every fighter is different. I have a game plan to beat him. I am well prepared. I came here to fight. I am prepared to go the distance. I am going to throw a lot of punches, move around and be ready to get the decision.Guerrero said he has studied what he could of Peralta, describing him as a laid-back counterpuncher. In other words, Guerrero is going to have to bring the fight to him, which is the way Guerrero likes to fight anyway.Im going to try and execute my game plan. We want to put pressure on him, he said. Ive had really good sparring for this, and Im ready to go. My opponent is kind of a laid-back fighter. Hes going to wait for me to come to him and try to counter. I saw a lot of him lying on the ropes, so Ill come inside and try to give the fans a great performance. Im excited to get in there.Ultimately, what Guerrero wants is another shot at a world title, preferably with Garcia -- although Garcia is in the process of lining up an expected October defense against Berto.Im ready for a world title shot now. I want the Danny Garcia rematch, Guerrero said. I feel like I won the fight. He had some flashy shots, but he didnt want to fight. It is what it is, and it motivates me to get back to that position.Its very important that I win this fight at all cost. The welterweight division has plenty of good fighters that I want to get in the ring with, so its a must that I win this fight. Im not taking Peralta lightly. Im coming to win and win impressively.Peraltas aim is to stop Guerreros quest for that title shot and perhaps get one of his own.Im physically and mentally prepared for this fight. Robert Guerrero is a great fighter and a great champion. Ive seen everything hes done, and I think this is my time, he said. The United States is a beautiful place, and Ive enjoyed being here very much. Im going to give a very hard fight on Saturday night. Im going to leave it all in the ring and come out with a victory. Wholesale Stan Smith UK . Tests earlier this week revealed a Grade 2 left hamstring strain for Sabathia, who was hurt in last Fridays start against San Francisco. Its an injury that will require about eight weeks to heal. He finished a disappointing campaign just 14-13 with a career-worst 4. Cheap Adidas Shoes UK . Tuesdays surgery at Atlantas Piedmont Hospital was performed by Dr. Xavier Duralde and Hawks team physician Dr. Michael Bernot. http://www.clearancestansmithuk.com/ . The Lightning are 2-0 so far on a four-game road trip, giving the club five straight wins as the guest and improving Tampas away record this season to 11-8-2. Stan Smith UK Online . After taking two big hits this week -- losing at home and dropping back-to-back games for the first time all season -- Indiana struck back by playing its most complete game of the year. Clearance Stan Smith UK Store . There was no hesitation from the 40th-ranked Pospisil, from Vernon, B.C., who admitted that he cut back on his training sessions over the last few days to conserve energy as the long ATP season finishes next week at the Paris Masters. ANTALYA, Turkey -- Thorbjorn Olesen shot a course-record 62 to take a commanding six-shot lead after the second round of the Turkish Airlines Open on Friday.Adrian Otaegui had earlier shot a 63, but Olesen went one better to enter the weekend at 15-under 127 and open up the largest 36-hole lead of the European Tour season.Otaegui and Thongchai Jaidee (66) were tied at 9-under, one stroke ahead of Joakim Lagergren (64), David Horsey (67), Matteo Manassero (68) and Li Haotong (68).The 26-year-old Olesen had made only four of his last 13 cuts but he was in good form at Regnum Carya Golf and Spa Resort, making an eagle and eight birdies.On the par-4 17th, Olesen drove into the rough but then curled his second shot around some trees and into the centerr of the green to set up a successful birdie putt.ddddddddddddAll three of Olesens European Tour titles have come when he has held the 54-hole lead.I feel like Ive been up in contention in a lot of big events, the Dane said. I feel pretty comfortable. There is still 36 holes to go, so thats a lot of golf to be played, but I have to keep being aggressive out there. Thats the only way I can win.It was a difficult day for Masters champion Danny Willett, who needs a top-five finish to overtake Henrik Stenson and return to the top of the Race to Dubai standings.Willett (74) dropped to 1-over and was in a tie for 58th place. ' ' '