It took just four days for the Nets’ roster to go from blank slate to overcrowded.

After the Nets made an NBA-record five first-round draft picks Wednesday night, they exercised team options on four more players Saturday afternoon.

The Nets can have a maximum of 20 players on their roster for training camp, and while they are believed to still be actively working the phones for more potential trades, they added a ton of warm bodies to what had been a threadbare roster.

Nobody in NBA history ever had gone into a draft with more than four first-round picks, and nobody had ever actually selected and kept more than three.