A 53-year-old man was stabbed in the chest near the Lollapalooza grounds while re-selling tickets to the sold-out festival Friday evening in downtown Chicago.

The Chicago Sun-Times reports that the attack happened just before 7 p.m. on the corner of Adams and Michigan -- just two blocks from an entry gate to the Grant Park mega-festival.

A group of young men had approached and attempted to rob the victim of his tickets, according to the Chicago Tribune. During the struggle that ensued, one of the robbers stabbed the reseller.

The stabbing victim was taken to Northwestern Memorial Hospital and was last listed in stable condition, Fox Chicago reports.

Lollapalooza is a hot ticket for music lovers in and near Chicago. The three-day festival sold out weeks ago and some 100,000 festivalgoers are said to have packed into the park Friday to partake in the event's opening day.

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  • Fans watch Florence and the Machine on the final day of the Lollapalooza festival in Chicago's Grant Park on Sunday, Aug. 5, 2012. (Photo by Steve C. Mitchell/Invision/AP)

  • Jack White

    Jack White, center, performs at Lollapalooza in Chicago's Grant Park on Sunday, Aug. 5, 2012. (Photo by Sitthixay Ditthavong/Invision/AP)

  • A man takes a photograph of the crowd waiting for Swedish pop band Miike Snow to perform at Lollapalooza in Chicago's Grant Park on Sunday, Aug. 5, 2012. (Photo by Sitthixay Ditthavong/Invision/AP)at Lollapalooza in Chicago's Grant Park on Sunday, Aug. 5, 2012. (Photo by Sitthixay Ditthavong/Invision/AP)

  • Jonsi Birgisson

    Jonsi Birgisson of the Icelandic band Sigur Ros performs at the Lollapalooza festival in Chicago's Grant Park on Sunday, Aug. 5, 2012. (Photo by Steve C. Mitchell/Invision/AP)

  • CHICAGO, IL - AUGUST 04: Fans are evacuated from Grant park due to an approaching storm during 2012 Lollapalooza at Grant Park on August 4, 2012 in Chicago, Illinois. (Photo by Theo Wargo/Getty Images)

  • CHICAGO, IL - AUGUST 04: Fans are evacuated from Grant park due to an approaching storm during 2012 Lollapalooza at Grant Park on August 4, 2012 in Chicago, Illinois. (Photo by Theo Wargo/Getty Images)

  • CHICAGO, IL - AUGUST 03: Patrick Carney and Dan Auerbach of The Black Keys performs during 2012 Lollapalooza at Grant Park on August 3, 2012 in Chicago, Illinois. (Photo by Theo Wargo/Getty Images)

  • Rahm Emanuel

    Chicago Mayor Rahm Emanuel takes the stage to introduce the Black Keys (unseen) on Friday, Aug. 3, 2012. (Photo by Sitthixay Ditthavong/Invision/AP)

  • Tony Iommi

    Tony Iommi of Black Sabbath performs at the Lollapalooza music festival on opening day in Chicago's Grant Park on Friday, Aug. 3, 2012. (Photo by Steve C. Mitchell/Invision/AP)

  • Ozzy Osbourne

    Ozzy Osborne of Black Sabbath performs at the Lollapalooza music festival on opening day in Chicago's Grant Park on Friday, Aug. 3, 2012. (Photo by Steve C. Mitchell/Invision/AP)

  • A couple shares a private moment at Lollapalooza in Chicago's Grant Park on Friday, Aug. 3, 2012. (Photo by Sitthixay Ditthavong/Invision/AP)

  • James Mercer

    James Mercer from The Shins performs at Lollapalooza in Chicago's Grant Park on Friday, Aug. 3, 2012. (Photo by Sitthixay Ditthavong/Invision/AP)

  • Yolandi Vi$$er

    Yolandi Vi$$er from Die Antwoord performs at Lollapalooza in Chicago's Grant Park on Friday, Aug. 3, 2012. (Photo by Sitthixay Ditthavong/Invision/AP)

  • Fans dance their way between stages at Lollapalooza in Chicago's Grant Park on Friday, Aug. 3, 2012. (Photo by Sitthixay Ditthavong/Invision/AP)

  • A girl dances in a mud puddle after thunderstorms forced the evacuation of the Lollapalooza festival in Chicago's Grant Park on Saturday, Aug. 4, 2012. (Photo by Steve C. Mitchell/Invision/AP)

  • Michael Angelakos

    Michael Angelakos of the electro-pop band Passion Pit performs at the Lollapalooza music festival on opening day in Chicago's Grant Park on Friday, Aug. 3, 2012. (Photo by Steve C. Mitchell/Invision/AP)

  • Haley Reinhart

    Haley Reinhart performs during a Lollapalooza concert, Friday, August 3, 2012 in Chicago. (AP Photo/Daily Herald, Joel Bissell)