SANTA CLARA, Calif. -- After Thursday nights loss to the Arizona Cardinals, San Francisco 49ers coach Chip Kelly said he plans to examine everything in the coming days, including the potential for a change at quarterback from Blaine Gabbert to Colin Kaepernick.I dont think anybody played well on offense, Kelly said. Nobody did.The coach has stood by Gabbert as his starter for the first five weeks, but Kelly will put the quarterback position under the microscope in the next 10 days before the 49ers game at Buffalo.I think were going to look at everything, Kelly said. We are 1-4, we have got to make sure were going out there and giving us the best chance to win so were going to look at everything.Kelly said Gabbert played his best game of the season last week against Dallas, but Kelly didnt have a similar opinion of Gabberts performance in Thursday nights 33-21 loss. Gabbert finished 18-of-31 for 162 yards with one touchdown and two interceptions for a QBR of 47.9 and a passer rating of 56.1. Gabbert also absorbed seven sacks.Its extremely frustrating, Gabbert said. I let this team and this organization down tonight and did not play good whatsoever, and thats on me. I had two crucial turnovers there that led to points for the Cardinals and that was the difference in the game right there. I got to do a better job protecting the football and leading this team to scoring more points and winning games.Late in the third quarter, with cornerback Chris Davis being tended to with a knee injury, a large group of 49ers fans began loudly chanting, We want Kaep. Former 49ers tackle Anthony Davis even took to Twitter to advocate a change to Kaepernick.Kaepernick changed and quickly departed the Niners locker room after the loss. He did not speak to reporters, but Gabbert was standing a few feet away in the auditorium where Kelly was answering questions about his job security.Gabbert said he understood why Kelly would want to evaluate the position before the teams Oct. 16 game in Buffalo.Yeah, Ive got to play better, Gabbert said. Theres no question to that. Ive got to do a better job leading this football team, executing this offense, scoring points, winning games, the whole nine yards. Thats just the way it goes. Ive got to play better.In the past, Kelly has refrained from considering a change in part because he didnt believe Kaepernick was in peak physical condition. Kaepernick spent most of the offseason recovering from shoulder, thumb and knee injuries and then had a setback during the preseason because of right shoulder fatigue.Kelly has said hed like to see Kaepernick get closer to his former 225-pound playing weight, believing that would potentially give him the chance to play at a high level -- similar to his success in 2012 and 13.Kelly also confirmed that Gabbert has been better than Kaepernick in practice, though the coach acknowledged that hasnt carried over to games.Blaine has done a really nice job in practice, yes, Kelly said. I would expect us to execute in practice now. Its a controlled environment; youre in a lot of trouble if youre not having any success in practice, either. I think thats what we have to make sure we can do is can we take it from the practice field to the game field, and were not doing that right now on the offensive side of the ball.Through the first five games, Gabbert ranks near the bottom of the NFL in yards per attempt, yards per game and passer rating. According to Elias Sports Bureau research, Gabbert fell to 9-31 in his career as a starter with Thursday nights loss, which tied him with Warren Moon for the second-worst record through a quarterbacks first 40 career starts since 1970.When Kaepernick last played, he wasnt faring much better. He was 26th in the NFL in QBR, 27th in completion percentage and 29th in yards per attempt during the first eight weeks of the 2015 season before landing on injured reserve.Kelly said the discussion and decision on quarterback wont be made right away, but he did say it would be his choice and that general manager Trent Baalke doesnt get involved in such matters.Any decision thats made with the current roster is a coaching staff thing, Kelly said. Trent had never come in and said this guy has to play or that guy has to play. Trent does a great job of acquiring talent and getting players on this football team, but hes never once told me who has to play where and what the lineup is and all that.Roberto Alomar Blue Jays Jersey . -- The goal posts lying flat on the field, Arizonas fans lingered on the field, congregating around the locker room entrance nearly 30 minutes after rushing out of the stands. Cito Gaston Jersey . -- Adam Snyder returned to the San Francisco 49ers this season because the offensive lineman thought it was his best opportunity to win a championship. https://www.cheapbluejays.com/3506h-reese-mcguire-jersey-blue-jays.html . Detroit and Boston are deadlocked, 1-1, and Tigers manager Jim Leyland could be forgiven if he was caught rationalizing instead of dissecting how his club could blow a 5-1 lead late in Game 2. Pat Borders Blue Jays Jersey . SIMONS ISLAND, Ga. Teoscar Hernandez Jersey . Rinne played two periods in his first game since left hip surgery in early May. Gabriel Bourque scored 3:07 into the second period and Austin Watson tallied 5:15 later for Nashville.RIO DE JANEIRO -- The bullet which flew through the roof of a media tent at the Olympic Equestrian Center on Saturday came from a nearby slum, according to a Brazilian official.During the lunch break of the first day of the eventing competition, a large bullet pierced the roof of the tent and landed on the floor. The competition was not disrupted and nobody was hurt.According to the security forces the bullet came from a community far from here, organizing committee spokesman Mario Andrada said on Sunday as investigations continued. They were aiming at the police blimp which carried cameras.The same source, which is the Minister of Defense, says the first findings showed that the bullet arrived ... with low energy and low speed.Security forces would not say if they are close to an arrest but are looking at footage from cameras on the blimp.The bullet landed close to one of the media tables at the end of the room where news conferences are held, leaving a clear hole in the roof.Security forces have obviously increased their levels of readiness and security in areas nearby and more specifically in the areas close to where this bullet has bbeen shot from, Andrada added.ddddddddddddThe Minister has reiterated that the target was the police blimp and confirms that this area was never the target, the Olympic games were never the target.In the arena, Britains William Fox-Pitt remained in the lead after the dressage phase of the eventing competition, just 10 months after being put into an induced coma following a fall.Fox-Pitt, who only returned to competitive action in early April, rode Chilli Morning to a score of 37 on Saturday and no-one could top that when the second group of riders competed Sunday.Christopher Burton of Australia and Santano II remain second, 0.6 penalties behind the Briton.Mathieu Lemoine rode Bart L into third place with 39.2 penalties, replacing Olympic individual champion Michael Jung who slipped to fifth on 40.9 after German teammate Ingrid Klimke scored 39.5.Germany, which is bidding for a third straight Olympic title, still leads the team competition, with France moving from fourth to second and Australia falling to third. 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