He played OK for the most part. A rookie starting his 1st game replacing a starter can expect to be targeted, especially in crunch time.
The 45 yard pass interference penalty wasn't blatant but it ignited the comeback for GB.
What was most disappointing in his play was he dropped an easy interception that would have not only thwarted the 8 points they scored after the drop but a pick there most likely secures the win for the Saints.