Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| 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 |
| 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 |
Question:
Which sport was held in Huntsville at the Von Braun Center as part of the Southern Indoor Football League?
Answer:
Indoor football