CALGARY -- The Calgary Stampeders take pride in their culture of "plug-in-and-play". Ryan Murray Jersey . When injury forces a player from the lineup, the replacement is expected to excel and help the team win. The Stampeders look to go 5-0 to start a season for the first time since 1995 when the B.C. Lions (2-3) come to town Friday (TSN, 10pm et/7pm pt). And with Calgarys star running back Jon Cornish and backup tailback Matt Walter out with concussion symptoms, it appears former CFL rookie of the year Martell Mallett will play in his first football game since 2009. The 28-year-old from Pine Bluff, Ark., rushed for 1,240 yards for the Lions in 2009, including a 136-yard performance in a game against the Stampeders, to earn that rookie award. Mallett then headed to the NFL where he got looks on practice rosters in Philadelphia, Cleveland and New York, but no games. The six-foot, 208-pound running back returned to Canada in 2012 with the Hamilton Tiger-Cats. A torn Achilles tendon suffered in training camp wiped out the season and the Tiger-Cats released him prior to training camp the following year. Signed as a free agent in January, Mallett came off Calgarys practise roster this week for some first-team reps. The Stampeders picked up running back Hugh Charles as insurance Monday following his release from the Saskatchewan Roughriders. Mallett has been with the Stampeders since training camp and is more familiar with Calgarys offensive schemes. "I look at it as a blessing," Mallett said Tuesday. "Its been a while since I played football. Ive been here, learning the playbook, learning the system and it just came down to my time to go. Thats why Im here, for depth." Cornish, the CFLs most valuable player last season and rushing leader the past two, went on the six-game injured list last week still suffering the effects of getting knocked out in the season opener. In his absence, regular returner Jock Sanders led Calgary in rushing yards with 86 on 16 carries in last Thursdays 26-22 win over Edmonton. Walters left that game in the first quarter. Mallett has a degree in agriculture business from Arkansas-Pine Bluff. His post-football ambition is to work for U.S. Fish and Wildlife as a special agent chasing down poachers. "I grew up in a country town. I love hunting and I love fishing, but I hate it when people break the rules," he said. Malletts brother Michael was shot and killed in their home town in 2012 while Mallett was recovering from his Achilles surgery. Michael is one reason Mallett isnt done with football and moving onto to his next career. "If my brother was here, he would want me to continue to play football," Mallett said. "With that in consideration and my youth, I just feel like I can do it. I have a lot of miles left on me. I havent played a whole lot." The Stampeders went 14-4 in 2013 with a three-man rotation at starting quarterback and receivers constantly in and out of the lineup. "Thats been in our biggest thing the last couple of years. Guys plug in and play," defensive back Keon Raymond said. "Weve probably been one of the most injury-prone teams over the last couple years Ive been here, but we havent missed a beat. One of Calgarys three starting quarterbacks last season returns to McMahon Stadium on Friday in a Lions uniform. Kevin Glenn went 10-3 for the Stampeders before he was taken in the expansion draft by the Ottawa Redblacks and subsequently traded to the Lions. Charles has taken reps and worked with the return team in two practices since his arrival in Calgary. Hes been cut this season by both the Roughriders and the Edmonton Eskimos, for whom hes played a combined 55 career games. The Eskimos released him from training camp. The 28-year-old from Tulsa, Okla., compiled 86 yards on 13 carries in his one game July 12 for Saskatchewan, but a fumble that led to a Lions field goal likely cost him his job there. "That was the majority of it. I was there to prove a point and I just didnt get it done," Charles said. "They put me in that spot for a reason and I didnt come through and they pulled the plug. "Its nice to be wanted. Its been a roller-coast this year and a trying year for sure. We all go through it as a pro athlete and in this business. Im old enough to not take anything personal and to know the deal and the situation when things go down. "My whole career has been about proving and myself. Its nothing new." Oliver Bjorkstrand Jersey . Samir Nasris 88th-minute equalizer at Etihad Stadium will be of little consolation to City, which is now six points behind league leader Liverpool and four points behind second-place Chelsea. Third-place City has a game in hand but the surprise result against Sunderland, coupled with Sundays 3-2 loss at Liverpool, may be a setback too far in its bid for a second championship in three seasons. Gabriel Carlsson Jersey .com) - Will Conant booted a 39-yard field goal as time expired and Air Force played spoiler with a 27-24 win over 21st- ranked Colorado State on Friday. http://www.bluejacketsauthority.com/authentic-sonny-milano-blue-jackets-jersey/ . The Durban-based Sharks withstood a furious second-half fightback to beat the Queensland Reds 35-20 for a fourth straight win which gave them a five-point lead atop the championship table. The Hamilton-based Chiefs scored two late tries to beat the Cape Town-based Stormers 36-20 for their third win, after the Stormers rallied from 24-6 down to 24-20 with six minutes remaining.HAMBURG, Germany -- Lukas Rosol upset 2006 champion Tommy Robredo of Spain 7-5, 7-6 (6) on Thursday to reach the quarterfinals of the Hamburg Open. The 42-ranked Czech saved seven break points while converting his one chance, and defeated the No. 3 seed in 1 hour 46 minutes. Rosol, who lost in the final in Stuttgart against Roberto Bautista Agut on Sunday, awaits the winner between Philipp Kohlschreiber or 22011 champion Gilles Simon. Seth Jones Jersey. German wild card Tobias Kamke knocked out the fourth-seeded Alexandr Dolgopolov with a 7-5, 2-6, 7-5 victory in just over two hours. Argentinas Leonardo Mayer beat Austrias Dominic Thiem 6-3, 6-2, Spains Pablo Andujar defeated Dustin Brown of Germany 6-1, 6-2 and Dusan Lajovic was leading 3-1 when fellow Serbian Filip Krajinovic retired due to illness. 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