diff --git a/MEV_by_chains/MEV_on_Arbitrum/fair_ordering_sequencing/README.md b/MEV_by_chains/MEV_on_Arbitrum/fair_ordering_sequencing/README.md
index 19890bb..3dca504 100644
--- a/MEV_by_chains/MEV_on_Arbitrum/fair_ordering_sequencing/README.md
+++ b/MEV_by_chains/MEV_on_Arbitrum/fair_ordering_sequencing/README.md
@@ -15,3 +15,4 @@
 <br>
 
 * [fair sequencing and chaninlink](https://github.com/go-outside-labs/mev-toolkit/blob/main/MEV_strategies/oracles/chainlink.md)
+* [can first come first served tx ordering prevent frontrunning, by robert annessi]()