West Ham have officially completed the signing of Nikola Vlasic from CSKA Moscow as David Moyes' side make another late addition in the summer transfer window ahead of tonight's deadline.

The Lowdown: Vlasic strongly linked with move

The Hammers have made a flying start to their Premier League campaign, playing some fine football and remaining undefeated so far.

They have been heavily linked with a late-summer move for Vlasic and a major development has now occurred regarding the deal.

The Latest: Done deal

On Tuesday morning, West Ham confirmed that the 23-year-old attacking midfielder is officially a Hammers player, completing his move from CSKA Moscow.

He has 26 caps to his name for Croatia, not to mention scoring 33 goals in 108 appearances for his previous club.

The Verdict: Another exciting addition

Following on from the weekend addition of Kurt Zouma, Vlasic could be another excellent signing in the final days of the summer transfer window, bringing even more quality in the final third.

His aforementioned goalscoring highlights his eye for goal, but he also provided 21 assists for CSKA Moscow, showing that he is also a creative force.

The hope is that Vlasic can take the Hammers up another level, dovetailing with the likes of Pablo Fornals and Said Benrahma in terms of creativity while also possibly relieving the goalscoring burden on centre-forward Michail Antonio.

GSB may have been slow to bring in players for most of the summer, but the deals for Zouma and now Vlasic in recent days represent a strong end to the transfer window for West Ham.

In other news, some West Ham fans love one recent transfer update. Read more here.