No. 3 Ohio State enters the College Football Playoff with a 6-0 record.The Buckeyes won their fourth consecutive Big Ten championship, and coach Ryan Day is making his second Playoff appearance as a head coach. The opponent is a familiar one, too. No. 2 Clemson knocked out the Buckeyes in the 2016 and 2019 CFP semifinals.MORE: Clemson is a 7.5-point favorite againstOhio Statein the semifinal at the Sugar Bowl in New Orleans. The gameis a rematch of last year's29-23 thriller at the Fiesta Bowl, and another showcase for quarterbacks Justin Fields Najee Harris T Shirts and Trevor Lawrence.Here is a closer look at theBuckeyes' College Football Playoff historyand the reasons whythey will (or won't) win a national championship in Pittsburgh Steelers Hats 2020:Ohio State's College Football Playoff historyThe Buckeyes are makingtheir fourth College Football Playoff appearance. Ohio State won the first College Football Playoff in 2014 under third-year coach Urban Meyer as the No. 4 seed. The Buckeyeshave lost twice in the semifinals to Clemson, both times as the No. 3 seed. Ohio State is again a No. 3 seed in 2020.Ohio Stateplayoff matchupOhio State is 0-4 all time against Clemson. Legendary coach Woody Hayes was fired after punching Tigers linebacker Charlie Bauman during the Buckeyes' 1978 Gator Bowl lo s. The Buckeyes have lost two playoffsemifinals to the Tigers, and they also lost 40-35 in the 2014 Orange Bowl.YEARRANKRESULTS20144Beat No. 1 Alabama 42-34, beat No. 2 Oregon 42-2020163Lost to No. 2 Clemson 31-020193Lost to No. 2 Clemson 29-2320203vs. No. 2 ClemsonWhy theBuckeyeswill winnational titleThe revenge factor pays off against NFL Pittsburgh Steelers Jersey Clemson. The Buckeyes' offense averages 42.5 points per gameand Justin Fields totaled 20 touchdowns in six games. Running back Trey Sermon emerged with331 rushing yards and two touchdowns in the Big Tenchampionship game, and the receiving tandem of Garrett Wilson and Chris Olave offers even more big-play potential. Ohio State led Clemson 16-0 in last year's semifinal beforeletting the advantageslip away;that was the biggest talking point in Columbus before the COVID-19 pandemic, and Day should learn from theexperience. Ohio State also can play the underdog card the way it did in 2014. From there, another matchup against Alabama would beas hyped as the Sugar Bowl semifinal in 2014. Ohio State has enough talent to matchup up with anybody in the four-team field.Why Pittsburgh Steelers Pet Gear theBuckeyeswon't winnational titleCOVID-19 has had a significant effect on the season. The Buckeyes mi sed three games and have been short-handed in their last two games. They must get healthy in a short amount of time. The Jack Ham Jersey jump in competition will be significant. Fields threw five interceptions combined in games against Indiana and Northwestern. Those turnovers won't be as easily forgiven against Clemson. The pa s defense allowed 260.8 yards per game this season. If the Buckeyes can't get a pa s rush against the Tigers, then their playoff history will repeat.The number of games they've playedcould go either way. They might be fresh, but are theyprepared for a playoff test?