Loan watch: Elmo's Hull slip up
Three goals in the first eight minutes from Bolton Wanderers did for the Tigers who saw Watford leapfrog them into second in the npower Championship table.
Elmohamady played the full 90 minutes, taking his tally up to 29 starts and three goals for Steve Bruce's side - one of which came in the win at Blackburn in midweek.
Elsewhere in the Championship, Connor Wickham made his second start for Sheffield Wednesday, who beat promotion hopefuls Crystal Palace 1-0.
Wickham played 56 minutes before being replaced by Gary Madine.
In the German Bundesliga, Ji Dong-Won scored his first goal for Augsburg, who beat Hoffenheim 2-1.
Ji scored the opener after 45 minutes before being replaced by Andreas Ottl in the 73rd minute.
The South Korean striker has made six starts for the German side, scoring once.
In the npower League One, Adam Reed played the final 13 minutes of Portsmouth's defeat at Oldham Athletic.
Reed replaced Liam Walker, taking him up to five starts and three substitute appearances for the bottom-of-the-league side.
In the Blue Square Premier, Billy Knott lasted just 15 minutes last time out as he picked up a hamstring problem, meaning he missed Saturday's 2-1 win over Southport.
Finally, U18's goalkeeper Jonny Maddison is yet to appear for League One Crawley Town.