Eric did brought Manchester united into bright light,he was able to discipline the players and built a team that is very strong and superb. It is Eric vs Xavi on the match day as both coach will want to show their quality that they have all it takes to win the match. Barca are performing excellently which will not make it easy for Manchester united to win the match. If Lewandoski is macked out it will be a problem for the club since De pay is gone.
Since Depay has already left, I'm sure they're looking for a plan B. The worst-case scenario for Barcelona is that Lewandowski is injured before their match against Manchester United. I'm not saying they won't have a chance, but they'll face a lot of pressure from Manchester United, as well as a goal drought because they don't have a striker who can simply finish the game for them when necessary. This is supposed to be a tough match, but given the present state of things, we may have to just see Manchester United prevailing against Barcelona.
Barcelona financial position is not good, and they are facing troubles just because of this selling their few players those are having high salaries even right now La Liga management never give them permission for having replacements, so this can create problems for them, but they have to face this all situation until end of this season because currently they are not able to have any buying.
They are leading in La Liga but having challenging situation in both leagues with their match against Manchester United is also coming soon so things looking not well and if they have any serious injury to Robert Lewandowski this could be more troubling and with this they can lose this all success quickly and face another troubling end of this season like they have in last few seasons.