ARLINGTON, Texas -- Jameis Winston and the Tampa Bay Buccaneers arent quite ready for prime time.They also arent out of the playoff chase because of a tough loss that ended their five-game winning streak, the longest since their Super Bowl-winning season of 2002.Weve just got to keep winning, see how it plays out, Winston said after a 26-20 loss at the NFC-leading Dallas Cowboys in his first Sunday night game.The Buccaneers (8-6), who couldnt muster a comeback in the fourth quarter after erasing a 17-3 deficit and taking a 20-17 lead, dropped a game behind Atlanta in the NFC South with two games left to play.After Winston threw touchdown passes to Adam Humphries and Cameron Brate in the third quarter, Tampa Bay had only one first down on their five possessions in the fourth quarter.The Bucs punted with just over 2 minutes left after Winston was sacked and had two incompletions.Ezekiel Elliott, the rookie leading the NFL in rushing, then had a 15-yard run before the Cowboys (12-2) were forced to punt with 1:38 left.With the Bucs at their own 11, Winston had an 11-yard completion for their only first down in the final quarter before an incompletion and fumble they recovered and then two more incompletions.We had a chance in the fourth quarter. Were not playing for chances, were playing for keeps here, first-year Tampa Bay coach Dirk Koetter said. I can only hope that this experience will help us.Elliott rushed for a career-high 159 yards, including a 2-yard TD when he celebrated by jumping into an oversized Salvation Army red kettle in front of the stands.While the Cowboys closed in on home-field advantage throughout the NFC playoffs, the Bucs are currently outside the NFCs top six.Tampa Bay split its two games with division-leading Atlanta. The Bucs go to New Orleans next weekend before closing the regular season at home against Carolina -- those are the two teams behind them in the division.Im not sure of all the scenarios yet, Koetter said. Right now, Dallas is the No. 1 seed. We came to their place and didnt play our best game.Dallas bounced back after their franchise-record 11-game winning streak ended, hanging on after Winston had rallied the Bucs.Winston threw for 247 yards and two touchdowns but had four turnovers, including an interception that led to Dan Baileys 38-yard field goal that gave Dallas a 23-20 lead early in the fourth quarter.Every game in the NFL is a must win, Brate said. It gets amplified here at the end of the year. Its a great opportunity for us. We put ourselves in a good spot. Things didnt go our way today, but if we win our last two, we feel like we have a good chance of making the playoffs.---For more NFL coverage: http://www.pro32.ap.org and http://www.twitter.com/AP-NFLDiscount Soccer Jerseys . -- Jimmie Johnson held off a teammate, passed a pair of Hall of Famers, and dominated once more at Dover. Cheap Juventus Jerseys China . 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Crouched behind the 10th green at Sheshan International, McDowell looked over at the powerful American and said, "Ive probably seen 18 of the best drives Ive seen all year in the last two days.UFC veteran Nate Diaz has accepted a public warning by the United States Anti-Doping Agency (USADA) for his admitted use of the banned substance Cannabidiol following UFC 202.Following a majority decision loss to Conor McGregor on Aug. 20 in Las Vegas, Diaz, 31, openly smoked a vape pen while fielding questions from the media.When asked what was in the device, Diaz revealed it was CBD oil, which he said helps in his recovery process. Cannabidiol is considered a banned substance by USADA up to six hours after competition. It is characterized as Cannabinoids.USADA immediately announced it was investigating Diazs admitted use of a banned substance.On Thursday, the anti-doping agency stated Diaz mistakenly believed the timeframe in which Cannabinoids are banned ended immediately after the fight, which is the case under the rules of the Nevada State Athletic Commission.ddddddddddddAdditionally, USADA confirmed Diaz passed in-competition blood and urine samples prior to his use of the vape pen. As a result, USADA felt a public warning was appropriate.Diaz (19-11) has been relatively quiet since UFC 202. He also faces potential sanctions under the NSAC for his role during a prefight news conference, as does McGregor. Diaz, who fights out of Stockton, California, has said the only fight hes interested in is a McGregor trilogy bout. ' ' '