After an eventful first round of NBA playoff action and one game in each conference semifinal season, 16 potential NBA Finals matchups remain on the table. Six of those series would be rematches of past NBA Finals, many of which were historic. The Lakers played in 10 total Finals against the Knicks, Pistons and 76ers throughout the years, including some of the most notable series in league history. Gregg Popovich’s lengthy Spurs run included championship victories over the Cavaliers as well as New York and Detroit. The potential matchups also feature some very intriguing superstar showdowns. LeBron James against his Cleveland superstar successor Donovan Mitchell. Shai Gilgeous-Alexander going head-to-head with Jalen Brunson or Tyrese Maxey. Anthony Edwards vs. Cade Cunningham. Put us down for any of those. As the second round heats up, Sports Illustrated ’s NBA staff has ranked all of the possible Finals matchups, from No. 16 to 1: 16. Thunder vs.…