the preseason opener unscathed.Some of his teammates weren’t as fortunate.Indianapolis Colts coach Frank Reich announced Friday that promising rookie receiver Deon Cain suffered a season-ending knee injury and running backs Marlon Mack and Robert Turbin will be listed week to week after sustaining other injuries.“Really unfortunate. Obviously Ryan Kelly Color Rush Jersey , he was having a great camp,” Reich said during a conference call with reporters. “We’ll support him and he’ll come back stronger next year.”All eyes, of course, were on Luck — who made his first game appearance in almost 600 days and looked like his old self.He completed 6 of 9 passes for 64 yards, leading the Colts to field goals on their first two drives and even bounced up quickly after taking his first big hit on the surgically repaired right shoulder before leaving the game.It was exactly what the Colts — and an anxious fan base — needed to see from the top overall pick in the 2012 draft.“Hopefully it brought a smile to the whole city (of Indianapolis) and really the NFL,” Reich said. “I think what’s cool in this league is that guys root for each other and quarterbacks root for each other, so it’s really a boost for the league and for our team.”But losing the other three players could alter the Colts’ preseason plans.Cain, a sixth-round pick out of Clemson who slid down the draft board because of off-the-field questions, was playing so well at training camp he was moving up the depth chart and appeared to be in position to challenge for one of the top three jobs in the receiving rotation.He spent the offseason working out with recently inducted Hall of Famer Randy Moss and consistently showed the coaches he was neither afraid of making catches in traffic nor using his 6-foot-2, 202-pound frame to win jump balls.Reich wasn’t even sure when Cain tore his anterior cruciate ligament though he believed it came when Cain made a cut https://www.coltsfanshop.com/Margus-Hunt-Jersey , trying to come back for the ball on a deep route.“One of the traits Deon was flashing was an ability to really win against press coverage and that’s really an attribute at this level,” Reich said. “But we know we’ve got something special in Deon Cain. He’s a good guy who can become a great player.”Losing Cain means the Colts are likely to stick with four-time Pro Bowler T.Y. Hilton, free agent acquisition Ryan Grant and veteran Chester Rogers as their top three receivers.And, for now, Reich seems content filling the other jobs with other players already in camp such as veteran K.J. Brent, who has impressed, too.But the more pressing concern is at running back, where the Colts are thin.Indy plugged Mack into the starting job left by departed workhorse Frank Gore.Mack played all of last season with a torn labrum in his shoulder and left in the first quarter Thursday with an injured hamstring.Turbin, a short-yardage specialist who was projected to be the No. 2 back, left the Seattle game with an injured ankle. He already has been suspended for the first four regular-season games for violating the league’s policy on performance-enhancers.Mack and Turbin are now listed week to week Peyton Manning Jersey , leaving the Colts with just four other running backs on the roster — veteran Christine Michael, who missed all of last season with an injured knee, rookies Nyheim Hines and Jordan Wilkins and veteran Josh Ferguson, who missed the game with a hamstring injury.“That run at the end of the game (by Wilkins), that was a big-time run,” Reich said, referring to a third-down conversion that helped seal Indy’s victory. “It’s only a couple-yard run, but those are the kind of runs that win games.”Notes: Reich said receiver James Wright also will be week to week with an injured knee. … Rookies Quenton Nelson and Darius Leonard also impressed Reich. Nelson, the No. 6 overall pick and highest chosen guard in more than two decades, helped keep the pocket mostly clean for Luck and showed he could be an asset as a pulling guard Al Woods Color Rush Jersey , too. Reich said Leonard, a second-round pick, “flashed” on a couple of plays at linebacker, too. … The Colts return to training camp Saturday afternoon and will host the Baltimore Ravens for a joint practice late next week. Former Washington State safety Jalen Thompson worked out for 26 teams in Los Angeles on Monday, Tony Pauline of draftanalyst.com reports. The Texans sent their director of scouting.Thompson and former West Virginia receiver Marcus Simms are expected to be drafted in Wednesday’s supplemental draft. Thompson measured just over 5 feet, 10 inches and weighed 186 pounds with 8 3/8-inch hands and an arm strength of 31 1/4, according to Pauline. He had a 33 1/2 vertical and 40-yard dash times of 4.47 and 4.56, with a 4.16 in the short shuttle and a 6.98 in the three cone.The Falcons ran Thompson’s position drills.Thompson met with the Packers after his workout, and the Patriots, Rams https://www.coltsfanshop.com/Erik-Swoope-Jersey , Dolphins, Colts and Cardinals also showed interest in him, per Pauline.Thompson lost his final year of NCAA eligibility, prompting him to declare for the supplemental draft.Former Syracuse linebacker Shyheim Cullen, former Saint Francis defensive back Bryant Perry and former junior college tight end Devonaire Clarington also have entered their names in the supplemental draft.