What is brock lesnar wrestlemania 39?

As an AI language model, I cannot predict future events or provide information about potential Wrestlemania events that do not exist yet. However, I can provide information about Brock Lesnar's past Wrestlemania events.

Brock Lesnar is a well-known wrestler who has participated in several Wrestlemania events over the years. His first Wrestlemania appearance was at Wrestlemania XIX in 2003, where he faced Kurt Angle for the WWE Championship and lost the match.

Lesnar returned to Wrestlemania 20 the following year in 2004, where he won the WWE Championship by defeating Eddie Guerrero. He defended his title successfully against a number of other wrestlers, including Goldberg and Kurt Angle, before eventually losing it to Eddie Guerrero in a rematch at No Way Out.

Lesnar went on a hiatus from WWE and returned seven years later at Wrestlemania 29 in 2013, where he faced Triple H in a No Holds Barred match and emerged victorious. Lesnar then became a part-time performer with WWE and went on to participate in several Wrestlemania events, including Wrestlemania 30 where he defeated The Undertaker, ending the latter's 21-match undefeated streak at Wrestlemania that spanned over two decades.

In Wrestlemania 31, Lesnar faced Roman Reigns in a WWE Championship match, but lost his title to him. However, he returned to Wrestlemania 32 one year later and won the WWE Championship again by defeating Dean Ambrose in a No Holds Barred match.

Lesnar's last Wrestlemania appearance was in 2019, at Wrestlemania 35. He participated in a Triple Threat match against Seth Rollins and Roman Reigns for the WWE Universal Championship but lost the match to Rollins.