Considered by some to be a possible first-round pick, Robinson did not hear his named called in Thursday night's opening round.
He was finally taken with the 61st overall pick late in the second round Friday, as the Jacksonville Jaguars traded up to get him.
What went wrong?
Due to a slew of early entries at the position, this was considered one of the deepest receiver classes in NFL history. Five wideouts went in the first round. Then five more went in the second round before Robinson finally came off the board. In all, a record dozen receivers went in the first two rounds.
Robinson was also hurt by a relatively slow 40-yard dash time (4.6 seconds) at the NFL Combine last winter.
It obviously is not known if Robinson would have become a first-round pick had he returned for his senior season. But, after another season with star quarterback Christian Hackenberg, it would have been difficult to imagine him slipping as far as he did in this year's draft.
But it is easy to imagine how much money this cost Robinson. The last pick of the first round in the 2013 draft received a signing bonus (meaning guaranteed money) of $3.3 million. The 61st pick that year received a signing bonus of $873,360.
Robinson barely played as a true freshman in 2011. But when Bill O'Brien took over the program in 2012, Robinson exploded. He was the Big Ten Receiver of the Year in 2012 and '13, and finished third on PSU's career receiving chart (177 catches for 2,474 yards and 17 scores).
His 97 catches last fall smashed his own record of 77 set in 2012.
The good news for Robinson is that Jacksonville is clearly focused on improving its passing game. It drafted UCF quarterback Blake Bortles with the third overall pick and USC receiver Marqise Lee with the seventh pick of the second round.