Table:
text: List of professional sports teams in Alabama
Current Semi-Professional teams
Current Semi-Professional teams
Club City Sport League Venue
Huntsville Rockets Semi-Pro Football Huntsville Football National Developmental Football League Milton Frank Stadium
Huntsville Havoc Huntsville Ice Hockey Southern Professional Hockey League Von Braun Center
Alabama Hammers Huntsville Indoor football Southern Indoor Football League Von Braun Center
Rocket City United Madison Soccer National Premier Soccer League Madison City Schools Stadium

text: List of professional sports teams in Alabama
Current Semi-Professional teams
Current Semi-Professional teams
Club City Sport League Venue
Dixie Derby Girls Huntsville Roller derby Women`s Flat Track Derby Association ( WFTDA ) Von Braun Center
Birmingham Blitz Birmingham Basketball Continental Basketball League Altamont School Gym
Marvel City Tigers Bessemer Football Gridiron Development Football League Snitz Snider Stadium
Birmingham Barons Birmingham Baseball Southern League Regions Park
Birmingham Black Widows Birmingham Football Womens Indoor Football League Venue Unknown
Huntsville Stars Huntsville Baseball Southern League Joe W. Davis Stadium
Mobile BayBears Mobile Baseball Southern League Hank Aaron Stadium
Montgomery Biscuits Montgomery Baseball Southern League Montgomery Riverwalk Stadium
Tennessee Valley Tigers Huntsville Football Independent Women`s Football League Milton Frank Stadium

Question: Among the list of professional sports teams in Alabama, what sport was played in Huntsville at the Von Braun Center as part of the Southern Indoor Football League?