Behind the scenes of an NHL offside review
Exploring the NHL offside review process during a recent game.

The Antrim hurling team has requested a meeting with the county board to discuss concerns over manager Davy Fitzgerald's position, following conflicting reports about his status after a recent defeat.
Mentioned in this story
The Antrim senior hurling squad have requested a meeting with the county board at Tuesday evening's training session to address "significant concern" surrounding the position of manager Davy Fitzgerald.
In a letter to the county board, which has been seen by BBC Sport NI, the players say they were under the impression that a decision was made to remove Fitzgerald from his role following last weekend's Joe McDonagh Cup defeat by Laois, only for the decision to be reversed.
However, the squad said they were subsequently informed "that no such action had taken place" and when the matter was brought to Antrim GAA chairman Seamus McMullan, he "indicated that he had no knowledge of it".
In the letter, the playing group say McMullan's response is "particularly concerning" given that Fitzgerald confirmed that "the sequence of events did in fact occur".
"The contradiction between what occurred and what has been communicated has created uncertainty and a lack of trust among players," read the letter.
BBC Sport NI has contacted Antrim GAA for comment.
While the run of poor results has led to disquiet among the playing panel and some Antrim GAA administrators, it is understood Fitzgerald has indicated a desire to remain in charge.

Image caption,
Davy Fitzgerald took over as Antrim boss in August 2024
The players also complained that some members of the group "have still not received the full allocation of gear that is expected".
"This has been highlighted as part of the basic gear requirements outlined in the GPA (Gaelic Players Association) Players' Charter, which further underlines the importance of addressing the matter without delay," the letter added.
The squad want a meeting with McMullan at their Dunsilly training base on Tuesday night "to provide clarity" on the situation involving Fitzgerald and their outstanding training gear.
In the letter, the playing panel said that if "Seamus and relevant board members are not in a position to attend and engage with the squad on these issues, the players will not proceed with the scheduled training session and further action could be taken".
Fitzgerald, who led his native Clare to an All-Ireland title in 2013, succeeded Darren Gleeson as Antrim boss at the end of the 2024 season on a two-year term with the option of a third.
The Antrim hurlers are concerned about conflicting information regarding manager Davy Fitzgerald's status after they believed he was removed from his role.
Seamus McMullan indicated he had no knowledge of any decision to remove Davy Fitzgerald, which has raised concerns among the players.
The Antrim hurlers have requested a meeting with the county board to address their significant concerns about the management situation.
Exploring the NHL offside review process during a recent game.
Wiregrass Ranch football under Coach Kantor aims to return to playoffs after last season's near miss.
Man steals home run ball from girl at Guardians game, sparking outrage.
Could José Mourinho be returning to Real Madrid after 13 years?
See every story in Sports â including breaking news and analysis.
The former Wexford and Waterford boss kept the Saffrons in Division One B of the Allianz Hurling League last year but was unable to prevent the county's relegation from the Leinster Senior Hurling Championship.
This season, they lost league matches to Wexford, Clare, Kildare, Dublin and Down, but their sole victory over Carlow proved enough to avoid relegation on points difference.
After losing their opening Joe McDonagh Cup games to Down and Laois, they face London in Ruislip on 10 May before home fixtures against Westmeath and Carlow.