Lions must keep an eye on ex-Barca boy
The Spaniard is the 11th signing Dave Jones has made this summer.
The 22-year-old has twice been capped by Spain at U-21 level, and has previously played for Sevilla from whom he reportedly cost Barcelona £2m.
It's not too often fans in the Championship will see players from the prestigious Catalan club performing, and hopefully the highly-rated striker will have an off day against Millwall.
Rodri scored on his debut last Tuesday night and The Lions will hope to keep him quiet this weekend.
One player Millwall will need to keep an eye on this Saturday is new season-long loan signing Rodri who they have aquired from Barcelona B with a view to a permanent transfer.
Writing ahead of Saturday's match at Hillsborough he said:
Steve Mildenhall believes Sheffield Wednesday's Catalan import Rodri is The Owls' main threat.