Benin is in Group F and opens their campaign against Ghana in Ismailia next Tuesday.
Solskjaer says United's position on the table is indicative of what their level has been this season.
Solskjaer believes Watford, Everton and Leicester are among the teams with ambitions to overtake United and climb into the top six.
It was a bitter blow for third-placed Tottenham.
Arsenal is preparing for Thursday's Europa League last 32 first leg trip to Belarus where they face BATE Borisov.
However, their Spanish manager Unai Emery still awaits his first away clean sheet of the campaign after Arsenal conceded a late consolation.
While the Gunners are expected to win the match, Emery says his players should not take success for granted against a team fighting to avoid relegation.
Everton move up to 8th on 33 points from 24 games while Huddersfield stay rooted to the foot of the table with 11 points after losing for the 10th time in their last 11 league games.
Goals from Danilo, Raheem Sterling and Leroy Sane ensure City to not trip up in the latest leg of their quest to keep the Premier League title-race alive.
Puncheon is Huddersfield's second January signing following the arrival of defender Jaden Brown from Tottenham.
The Gunners stretched their unbeaten run to 21 games.
If Huddersfield had won, they would have made their way out of the Premier League's relegation zone.
Although Harry Kane's two goals helped Tottenham beat Huddersfield, coach Mauricio Pochettino expressed his concern about burnout and how it would affect his team.
Leicester City's 3-1 victory eased the pressure on coach Claude Puel.
West Ham beat Wimbledon 3-1, but Cardiff, Huddersfield, and Brighton all lost.
Huddersfield drew 0-0 against Cardiff despite being reduced to 10 men.
Sarri has committed himself to doing things his own way at Chelsea, promising attractive football and scrapping Antonio Conte's three-man defence in favour of the 4-3-3 set-up he employed at Napoli.
Arsene Wenger admitted it was hard to keep his emotions in check as the Arsenal manager brought the curtain down on his 22-year reign with a 1-0 win at Huddersfield on Sunday.
The United manager says he has to come up with a contingency plan as the French midfielder may not be available for then trip to Sevilla.
Jose Mourinho is likely to name a strong line-up as he has done in previous rounds against lower-league opponents Derby and Yeovil.