SANTA CLARA, Calif. -- The San Francisco 49ers have added another quarterback to the competition to be Colin Kaepernicks backup, signing nine-year veteran Seneca Wallace to a one-year contract Thursday. While Colt McCoy had appeared to be the favourite to win the No. 2 job coming into training camp, neither he nor Scott Tolzien have separated themselves. Even rookie B.J. Daniels has been deemed a contender, though clearly Wallace now will get a chance with little time to prepare before the Sept. 8 season opener against Green Bay. 49ers offensive co-ordinator Greg Roman said this week that Sundays game against Minnesota would be important for all of the quarterbacks. "I think its going to be a big game for them, big game for all of us," Roman said. "But, I think they just need to improve really down-in, down-out consistency. The right reads, obviously making the right throws. Theyve done some really good stuff up til now, stuff thats under-the-radar type things. Again, theyve had some plays that theyd love to do over again. So, its a matter of coming out this week and having a really strong performance." Wallace, who was competing with Luke McCown to back up Drew Brees in New Orleans, had his contract terminated by the Saints on Monday. Coach Jim Harbaugh said Wednesday that McCoy likely would play second after Kaepernicks stint is done in Sunday nights exhibition against Minnesota at Candlestick Park. McCoy, Tolzien and Daniels each have been getting regular repetitions in practice with the No. 2 offence, Harbaugh said. He isnt against giving a rookie the backup quarterback job, which Kaepernick had behind Alex Smith after being drafted in the second round from Nevada in 2011. "Yes, its OK. How that plays out, we will see," Harbaugh said. "Its OK for a veteran to be the backup." McCoy hasnt looked sharp or comfortable this preseason, and it appears he is still trying to find his way in Harbaughs expansive offence. He has completed 6 of 13 passes for 76 yards, no touchdowns and two interceptions while also getting sacked once. "Definitely, its a factor," Harbaugh said of transitioning to a new team. "I dont know if its a percentage that youre looking for. Is it a percentage youre looking for or how much? Its definitely a factor, and the good improvement this week, hes working at it very hard, it means a lot to him and it does to us, too. Were coaching him up the best we can and well keep striving for improvement each day." San Francisco waived wideout Ricardo Lockette, who worked out with Kaepernick in Atlanta for a stretch this off-season along with departed A.J. Jenkins. Also Thursday, when the players had a scheduled day off, San Francisco placed safety Darcel McBath on season-ending injured reserve and claimed linebacker Joe Holland off waivers from the Tampa Bay Buccaneers. 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Mike Mussina Jersey . We wonder if the price of a Roberts rookie card has at least gone up a few cents? Tribute Tweets #Padres Tony Gwynn had 287 career plate appearances against #Braves trio of Maddux, Glavine, & Smoltz, he hit .MIAMI -- Alexi Amarista was glad to get an opportunity to play on his birthday, even if he had to wait six innings. Amarista celebrated his 25th birthday by delivering a go-ahead, three-run homer in the seventh inning to lift the San Diego Padres to a 4-2 victory over the Miami Marlins on Sunday. "I was happy," Amarista said. "Instead of me getting gifts from my teammates, I gave a gift to the team. After all that we went through this series, to get a W the way we did and come through on my birthday is something Im not going to forget." Will Venable and Tommy Medica singled with one out in the seventh. Nathan Eovaldi was able to get Yasmani Grandal to ground out before Amarista came to plate. Batting for pitcher Ian Kennedy, Amarista drove the ball over the right-field wall on the ninth pitch of the at-bat for a 3-1 lead. "Hes a little guy, but hes got a little sock on the pull side," Padres manager Bud Black said. Amarista, a centre fielder, was held out of the starting lineup, but came through when he got his chance. "Some guys were giving me a hard time, you always play a guy on his birthday," Black said. "We didnt start him, but he sort of showed me I guess." Kennedy (1-1) was sharp, using his fastball and curveball as he allowed one run and three hits in six innings. He struck out five before exiting in favour of Amarista. "Its a good birthday gift for him," Kennedy said. "If he does that every single time, thats pretty awesome." Four relievers then helped the Padres end a four-game losing streak, including two against the Marlins to begin the series. Huston Street pitched the ninth for his second save. "No doubt it was a good win. You hate to leave on a loss, especially a sweep,"; Black said.dddddddddddd. Eovaldi (1-1) held the Padres scoreless through six. Eovaldi struck out eight, which tied a career high. "I definitely didnt see that coming," Marlins manager Mike Redmond said. "Eovaldi pitched a great game and deserved better than that, but sometimes thats the way it goes." The Marlins completed their opening homestand with a 5-2 record. "The goal is to try to win every series and we were able to do that," Marlins third baseman Casey McGehee said. "We had a chance to go for a sweep today. We had our chances, but now we have to go on the road and try to keep the momentum going." Miami got a run back in the bottom of the seventh with Jeff Bakers pinch-hit RBI double. San Diegos Yonder Alonso had a sacrifice fly in the eighth to extend the lead to 4-2. It was the first time this season San Diego had scored at least four runs in a game. "No doubt weve got to get the bats going," Black said. "Ive said that repeatedly over the last three to four days. You look at some of those averages and theyre obviously a little low. We need those guys to start getting some hits." Giancarlo Stanton pushed his RBI total to 12 in the fourth with a base hit to drive in Christian Yelich, who tripled to lead off the inning. Stanton already has a career-high RBI total for April. NOTES: Stanton posted nine RBIs in April in each of the last three years. ... It was the first career pinch-hit home run for Amarista. ... Miami begins a three-game series at Washington on Tuesday, with RHP Henderson Alvarez (0-1, 9.00) facing LHP Gio Gonzalez (1-0, 1.50). . San Diego plays at Cleveland on Monday, with LHP Robbie Erlin (0-0, 0.00) taking the mound against RHP Corey Kluber (0-1, 13.50). ' ' '