LAS VEGAS -- All eyes are on and , the ' two Tyler Flowers Jersey MVP candidates, going into LVIII against the . But one of the biggest reasons for the team's offensive succe s comes not in the form of splashy plays or innovative designs. Instead, the 49ers will tell you that much of their true momentum stems from something simpler.Blocking.Left tackle headlines the trenches, but it's actually the dirty work of skill players like tight end and wide receiver that serves as a catalyst for the kind of MVP-level production of McCaffrey and, by extension, Purdy. The numbers and film bear this out, with Kittle routinely and Jennings of downfield blocks, including this postseason against the .But their mindset -- of proactively Nick Markakis Jersey , not pa sively, engaging as blockers -- is relatively unusual for key starters on a title contender."I'm just trying to finish him; I'm trying to put him on his back," Jennings saidof his approach this week. "That's football, man." He doubled down on the approach when asked if he'd rather make a game-winning block or catch in the Super Bowl: "That's either one. Fifty-fifty. Either one, as long as I'm winning." Coach Kyle Shanahan said previously that Jennings takes the same mindset "every play out at practice," often provoking the 49ers defense to the point of potential on-field fights because "they (think) he Chipper Jones Jersey 's going above and beyond." Even so, defenders like respect Jennings because of his persistent physicality in this regard."He doesn't get all of the attention or the limelight but you know he's going to be there in the clutch situations when you need him," Warner said, . "He is Steady Eddie as it comes. Obviously, with the run game stuff and the pa s game he is a complete player and I'm really happy he is on our side."It goes the same with Kittle, who for Brandon McCarthy Jersey years has thrived both paving lanes and catching pa ses, translating years of heavy run-blocking usage at Iowa to the stage. With both he and Jennings, again, it's not just the willingne s to block; it's the eagerne s to block all the way through, pushing the limits in terms of driving opponents off the ball. Every team blocks; few execute it like San Francisco does, thanks in large part to these two veterans. Couple their efforts with the naturally gifted McCaffrey, who pairs Tom Glavine Jersey toughne s with dynamism out of the backfield; and the sneakily elusive Purdy, who does his own part to extend plays as Shanahan's ball-control point guard; and you might have a recipe for the 49ers to take down the Chiefs on Sunday -- pound the rock, control the clock, and do it with premium blocks.