John Terry will be asked by UEFA to wear an anti-racism armband if he captains Chelsea against Shakhtar Donetsk on Tuesday night.
All club captains will be asked to wear a 'United Against Racism' armband as part of a week of action by European anti-discrimination body FARE.
Terry last week accepted a four-match ban for racially abusing QPR's Anton Ferdinand, but the suspension only applies to domestic matches meaning he is eligible to play for Chelsea in the Champions League on Tuesday, and he would be expected to skipper the side.
UEFA said in a statement: "Every team will be accompanied onto the pitch by children wearing 'Unite Against Racism' T-shirts and the captains will be asked to wear a 'Unite Against Racism' branded armband."
The campaign will be promoted at 40 matches across the Champions League and Europa League this week, with films broadcast on giant screens and special announcements made on stadium loudspeakers to encourage fans to join UEFA in its call to unite against racism in football.
Meanwhile, PFA chairman and Kick It Out ambassador Clarke Carlisle has said Rio Ferdinand should not be punished for his refusal to wear an anti-racism T-shirt.
Several players, including the Manchester United defender and his brother Anton, who plays for QPR, declined to wear the T-shirts supporting the anti-racism campaign group Kick It Out while warming up for weekend matches apparently unhappy with what they consider a lack of progress.
Ferdinand's decision brought , who promised the player would be "dealt with", and who had previously criticised Jason Roberts' stated intention not to wear a Kick It Out shirt.
Carlisle said: "Sir Alex Ferguson is trying to reaffirm his unwavering support of the Kick It Out campaign and that's fantastic.
"But this should not be seen as player versus club or dissension from a player against their employer.
"This is about a group of players and some wider issues that transcend that relationship.
"We would not want to see Rio Ferdinand punished. As I said of the handshake saga, you cannot coerce any man against his will and to do so would be the complete opposite of what the campaign is for.
"(Reading manager) Brian McDermott and (Newcastle manager) Alan Pardew said they had good conversations with their players to understand why (they did not wear the T-shirt) and they respect them in that.
"Sir Alex Ferguson pointed out in his own interview he did not know why Jason Roberts or any other player would not want to wear the t-shirt, so I hope that conversation takes place in the next couple of days."
Anton Ferdinand was the victim of racial abuse from Terry in a league match last October.
The T-shirt campaign came days after ugly scenes in Serbia where Danny Rose was sent off at the end of an England Under-21 match during which he complained of racist abuse from the crowd.
And Northumbria Police said they were investigating .
Carlisle said he had spoken to a number of the players who chose not to wear the T-shirt, and had listened to their concerns.
"This is a group of players who are trying to make a statement," he said. "This is not a problem with Kick It Out per se, though they would like Kick It Out to be more vocal and authoritative.
"But the main point they would like to make is about the way governing bodies have approached issues over the past 12-18 months, the way they have investigated them and the expediency of those investigations, and how weak the sanctions were at the end of them.
"This is not just the FA, it's UEFA and FIFA and it ties in with other issues the players want their union to address. This was their opportunity to make that stand."
The Premier League confirmed their backing for the Kick It Out campaign.
A Premier League spokesman said: "We are long-term supporters and funding partners of Kick It Out and respect both the quality of their work and their independence. They have played an integral part in the progress made to promote equality and tackle discrimination in the English game.
"In the Premier League huge efforts have been made to make football more inclusive. Fans from black and minority ethnic communities now make up 13 per cent of our match attenders, a figure that has grown every year for the last five years.
"Additionally, last season 28 per cent of the 4.5million participants in our Creating Chances good cause work were from black and minority ethnic communities. Those projects stretch from individual project support to organisations like Show Racism the Red Card to the national social inclusion campaign Kickz, which has benefited thousands of young people.
"There remain challenges for all of the football authorities and we are committed to engaging with our stakeholders to continue to promote equality and diversity and work towards eradicating all forms of discrimination in the game."