Jordon Ibe was robbed at knifepoint when thieves rammed his car in an attack in London earlier this month.
Ibe, Bournemouth's record signing, had his watch stolen when his car was hit in south-east London, just four days after suspected gunmen allegedly threatened West Ham striker Andy Carroll.
England international Carroll, 27, was the victim of an alleged attempted robbery as he drove home from a training session on November 2.
Scotland Yard said detectives were investigating the attack on Bermondsey-born Ibe, which took place near Surrey Quays Underground station at around 1.45pm on November 6
The Sun reported that the assailants made off with the 20-year-old's £25,000 Rolex.
A Met Police spokesman said: "One of the suspects threatened the victim with a knife before stealing his watch. The victim was not injured.
"At this early stage, officers are investigating whether the suspects intentionally collided with the victim's car."
West Ham manager Slaven Bilic described Carroll as "very brave" after the player was allegedly targeted as he drove his Mercedes G-Wagon back to his home in Essex from the club's Rush Green training ground.
Jack O'Brien, 22, of Ivyhouse Road, Dagenham, east London, is due to appear in court charged with a string of offences, including attempted robbery in connection with Mr Carroll.