LAS VEGAS -- Middleweight champion Chris Weidman has a knee injury, forcing the UFC to postpone his title bout against Lyoto Machida for six weeks. Cheap Jerseys . The UFC announced the changes to two major Las Vegas shows on Monday. Weidman (11-0) was expected to make his second title defence at UFC 173 on May 24 at the MGM Grand Garden, but the Long Island-based mixed martial artist needs minor surgery. Weidmans bout with Machida is moving to UFC 175 on July 5 at the Mandalay Bay Events Center. The UFC hasnt decided on a new main event for its traditional Memorial Day weekend show. Former heavyweight champion Junior Dos Santos will meet Stipe Miocic in the top undercard fight on the pay-per-view event. Weidman claimed the 185-pound title when he stopped long-reigning champion Anderson Silva in the second round last July. He defended the belt in December when Silva broke his leg in their rematch. Weidman is the fourth champion in the UFCs seven mens weight classes currently sidelined for surgery, although his recovery is expected to be the shortest. Heavyweight champion Cain Velasquez had shoulder surgery in December, and isnt expected to return to the octagon until late this year. Lightweight champion Anthony Pettis has been out since last August following knee surgery, and is hoping for a late-summer return. And welterweight champion Johny Hendricks is likely out until fall after tearing his right biceps muscle two weeks before his victory over Robbie Lawler this month. Machida (21-4), the former UFC light heavyweight champion, got this middleweight title shot after Vitor Belfort was removed from the card in late February when the Nevada Athletic Commission banned the use of testosterone replacement therapy. Belfort was among MMAs most prominent sanctioned steroid users, but has decided to give up the practice. Machida, a karate expert from Brazil, has won two straight fights after dropping down to 185 pounds. Authentic Jerseys . Adam LaRoche will take that. "I like our position in the standings and I like how our team is playing," LaRoche said after Washington swept a day-night doubleheader from the Cubs on Saturday. NHL Jerseys . Jean-Gabriel Pageau and Buddy Robinson scored 43 seconds apart in the second period to lead the Binghamton Senators to a 4-1 victory over the Bulldogs in American Hockey League action Friday night at the Bell Centre. https://www.cheapjerseysjustwholesale.com/ . Top-seeded Djokovic, who is making only his second appearance this year after reaching the quarterfinals of the Australian Open, was a 6-3, 6-3 winner over 54th-ranked Istomin of Uzbekistan. "It wasnt as easy as the scoreline indicates," said Djokovic, who has won in Dubai on four occasions.BUENOS AIRES, Argentina -- Riot police used tear gas and rubber bullets to disperse a group of rock-throwing vandals who disturbed a rally by Argentines celebrating their teams gutsy performance in a 1-0 loss to Germany in the World Cup finals. Thousands of Argentines, saddened but proud, had gathered peacefully at the iconic Obelisk in downtown Buenos Aires to applaud their teams best World Cup performance in 24 years. Police initially remained on the sidelines as fans poured into downtown Buenos Aires. But late Sunday night they began chasing down vandals. The youths, many of them with their faces covered and drinking heavily, responded by hurling rocks, destroying store fronts, tearing down street lights and even breaking into a theatre. Parents with small children could be seen fleeing in fear. National security secretary Sergio Berni said that 120 people were arrested. The Buenos Aires emergency medical service reported on Monday that 70 people were treated for injuries, including 15 police officers. The chaotic situation marred what was an otherwise spontaneous show of support for Argentinas national team. The centre of festivities was the Obelisk, where fans traditionally gather to celebrate victory, not defeat. Cars honked staccato rhythms, firecrackers were tossed into the air and fans of all ages jumped in place shouting "Argentina! Argentina! Argentina!" "We have nothing to regret, we played first rate," said 53-year-old Horacio Laseiras, carrying his six-year-old daughter on his shoulders. The two-time world champion entered the title match as the clear underdog after Germanys 7-1 thrashing of host Brazil. But despite complaints about lacklustre play earlier in the tournament, the team led by captain Lionel Messi showed grit throughout the match, creating several opportunities to score in the first 90 minutes. Amid the outpouring of gratitude, there was a hint of frustration that Messi, the four-time world player of the year, didnt turn in a stronger performance. "Messi still isnt Maradona," said 31-yeear-old Eduardo Rodriguez, referring to Diego Maradona, who lifted the championship trophy for Argentina in 1986 and led the albiceleste to its last World Cup final, also against Germany, in 1990. Adidas Jerseys. "But this here is a party. Were all proud of our warriors." In Argentinas capital, about 20,000 people dressed in the blue and white colours of the countrys flag filled the capitals Plaza San Martin to watch the match on a giant screen, climbing atop lamp posts to get a better view. "I feel an enormous sadness," Soledad Canelas, 19, said after the game. "I had the illusion of seeing Argentina become champion for the first time in my life." The shot at the title united Argentines otherwise exasperated by one of the worlds highest inflation rates, an encroaching debt crisis and a corruption scandal that has penetrated deep into President Cristina Fernandezs inner circle. Fernandez, whose approval rating has plunged in recent months, kept a low profile during the tournament. She declined an invitation to attend the final, preferring instead to rest ahead of a summit Tuesday, also in Brazil, with leaders from Brazil, Russia, India and China. She didnt comment on the teams loss but local media reported she had called head coach Alejandro Sabella to offer her support and is planning to welcome the team home on Monday morning. Despite the pride over their teams performance, many Argentines couldnt hide the pain. In Rio de Janeiro, more than 70,000 Argentina fans cheered on their team, many having travelled upward of 40 hours by car and seemingly all wearing their teams sky-blue jerseys and chanting day and night. "This was a trauma. We were going to be able to leave singing songs in victory with the glory of the Cup," said Joao Cuenca, who has an Argentine father and a Brazilian mother. "What happened is nothing short of a disaster." ---- AP Writers Joshua Goodman in Bogota, Colombia, Debora Rey in Buenos Aires and Jenny Barchfield in Rio de Janeiro, contributed to this report. ' ' '