After a disturbance in the morning, a search of the group's coach uncovered weapons including a knuckleduster and knives as well as drugs on board.
The English FA said on Thursday it was "seriously concerned" about abuse of players on social media after Chelsea's Karen Carney was targeted.
This season the WSL will be fully professional for the first time; Rachel Brown-Finnis gives her title predictions ahead of the opening weekend.
Juventus Women have bolstered their squad with the signing of Chelsea and England striker Eniola Aluko, the Italian champions announced Wednesday.
Eni Aluko, who helped Chelsea win the Women's FA Cup and the Women's Super League, said she will leave Chelsea Ladies this summer.
Chelsea Ladies secured the Women's Super League title and a domestic double by beating Bristol City 2-0 on Tuesday.
Ramona Bachmann scored twice and Fran Kirby netted a fine individual effort as Chelsea Ladies beat Arsenal Women 3-1 to win the FA Cup final.
Kirby has scored 22 goals for Women's Super League leaders Chelsea in all competitions this season.
Chelsea Ladies striker Fran Kirby's excellent form has been recognised by her peers as she won the vote for the PFA Women's Player of the Year.
Fran Kirby scored twice and made another as Chelsea reached the Women's Champions League semifinals with a 3-1 victory over Montpellier.
It's been over a decade since an English side won the Women's Champions League, but Chelsea think they have the squad to win and end that streak.
Paris Saint-Germain are one of two French women's clubs in talks to sign Chelsea Ladies and England attacker Eniola Aluko, a source has told ESPN FC.
Chelsea player made allegations against former England Women manager Mark Sampson.
Aluko's goals came as Women's Super League leaders Chelsea thrashed bottom side Yeovil 6-0 at home.
Chelsea Ladies clinched the FA Women's Super League title for the first time with a 4-0 home victory over Sunderland on the final day of the season.
Chelsea Ladies claimed the first major trophy in their history by defeating Notts County Ladies 1-0 in the SSE Women's FA Cup final at Wembley.
|Manchester City Women||18||13||5||0||+36||44|
|Chelsea FC Women||18||10||6||2||+23||36|
|Birmingham City Women FC||17||10||1||6||+7||31|
|Reading FC Women||18||8||3||7||+5||27|
|Bristol City Women FC||18||7||4||7||-13||25|
|West Ham United Women FC||17||6||2||9||-8||20|
|Liverpool FC Women||17||5||1||11||-20||16|
|Brighton & Hove Albion Women FC||18||3||4||11||-22||13|
|Everton Ladies FC||17||2||3||12||-21||9|
|Yeovil Town Ladies FC||17||2||1||14||-38||-3|