Everton in big-money swoop for Senegal striker

06:40 - 02 February 2016

Lokomotiv Moscow's Baye Oumar Niasse (C) fights for the ball with Besiktas' Ismail Koybasi (L) and Ersan Gulum during their Europa League group H soccer match in Moscow, Russia, October 22, 2015. REUTERS/Maxim Zmeyev

"He is the right personality and someone who is in a very good moment of his career," Martinez told the club's website.

Everton sealed one of the costliest signings of the mid-season window when Senegal striker Oumar Niasse joined in a 13.5 million pounds ($19.48 million) transfer from Lokomotiv Moscow on Monday.

The 25-year-old, known for his pace and power, penned a four-and-a-half year contract, much to the delight of manager Roberto Martinez.

"He has had a lot of success in Russia and brings a different quality to what we already have in our squad."

Niasse, named Russian Premier League Player of the Year in 2015, joined Lokomotiv in 2014 from Turkish club Akhisar Belediyespor, scoring 19 goals in 42 appearances.

He cannot make his English Premier League debut against Newcastle United on Wednesday but could be in line for Saturday's trip to Stoke City once international clearance has been obtained.