I just watched last 5 minutes in slow motion at a little over 4 minute mark Semi made a big contested rebound-his defense in the last minute included several walls of verticality forcing misses right at the end-Jayson will get the credit but the last 4.5 minutes and in last 60 seconds or so Semi altered and withstood a barrage without giving an inch or drawing any fouls.
Earlier in 4th he also was shoulder barged twice BANG BANG! by Okafor and wasn't budged forcing Okafor to settle and miss,--
Until you use slow motion you miss how physical it gets playing defense